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001-37850
ATOMERA INCORPORATED
DE
30-0509586
750 University Avenue
Suite 280
Los Gatos
CA
95032
(408)
442-5248
Common stock: Par value $0.001
ATOM
NASDAQ
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<p id="xdx_804_eus-gaap--NatureOfOperations_zzVabXXlY6U9" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"> </p>
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<tr style="vertical-align: top">
<td style="width: 48px"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>1.</b></span></td>
<td><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b><span id="xdx_827_zMFcbC2huks7">NATURE OF OPERATIONS</span></b></span></td></tr>
</table>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"> </p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in">Atomera Incorporated (“Atomera”
or the “Company”) was incorporated in the state of Delaware in March 2007 under the name MEARS Technologies, Inc. and is engaged
in the development, commercialization and licensing of proprietary processes and technologies for the semiconductor industry. On January
12, 2016, the Company changed its name to Atomera Incorporated.</p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"> </p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in">Atomera is an early-stage
company, having only recently begun limited revenue-generating activities, and is devoting substantially all its efforts toward technology
research and development and to commercially licensing its technology to designers and manufacturers of integrated circuits.</p>
<p id="xdx_806_eus-gaap--SubstantialDoubtAboutGoingConcernTextBlock_zgU4pS9Me61i" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"> </p>
<table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<tr style="vertical-align: top">
<td style="width: 48px"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>2.</b></span></td>
<td><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b><span id="xdx_824_zRWtM6xFqSlc">LIQUIDITY AND MANAGEMENT PLANS</span></b></span></td></tr>
</table>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"> </p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in">At March 31, 2023, the Company
had cash, cash equivalents and short-term investments of approximately $<span id="xdx_908_eus-gaap--CashEquivalentsAtCarryingValue_iI_pn3n3_dm_c20230331_zIojdmpYKhFd" title="Cash and Cash Equivalents, at Carrying Value">17.1</span> million and working capital of approximately $<span id="xdx_90F_ecustom--WorkingCapital_iI_pn3n3_dm_c20230331_zYJTQ69B5b98" title="Working capital">14.9</span> million.
The Company has generated only limited revenues since inception and has incurred recurring operating losses. Accordingly, it is subject
to all the risks inherent in the initial organization, financing, expenditures, and scaling of a new business that is not generating positive
cashflow.</p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"> </p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in">The Company has primarily
financed operations through private placements of equity and debt securities, the Company’s Initial Public Offering (the “IPO”)
which was consummated on August 10, 2016, and subsequent public offerings of its common stock. On May 31, 2022, Atomera entered into an
Equity Distribution Agreement with Oppenheimer & Co. Inc. and Craig-Hallum Capital Group LLC, as agents, under which the Company may
offer and sell, from time to time at its sole discretion, shares of its $0.001 par value common stock, in “at the market”
offerings, (“ATM”), to or through the agent as its sales agent, having an aggregate offering price of up to $50.0 million.
During the three months ended March 31, 2023, the Company sold approximately <span id="xdx_900_eus-gaap--StockIssuedDuringPeriodSharesNewIssues_pn3n3_c20230101__20230331__us-gaap--SubsidiarySaleOfStockAxis__custom--ATMMember_zAYcHU8PdOT7" title="Sale of stock, shares">50</span>,000 shares pursuant to our ATM at an average price per
share of approximately $<span id="xdx_90B_eus-gaap--SaleOfStockPricePerShare_iI_pip0_c20230331__us-gaap--SubsidiarySaleOfStockAxis__custom--ATMMember_zCHazGOARuOj" title="Average price per share">6.40</span>, resulting in approximately $<span id="xdx_900_eus-gaap--ProceedsFromIssuanceOfCommonStock_pn3n3_c20230101__20230331__us-gaap--SubsidiarySaleOfStockAxis__custom--ATMMember_zH0iAf4oQRPc" title="Proceeds from sale of stock, value">274</span>,000 of net proceeds to us after deducting commissions and other offering
expenses.</p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"> </p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"/>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in">Based on the funds it has
available as of the date of the filing of this report, the Company believes that it has sufficient capital to fund its current business
plans and obligations over, at least, 12 months from the date that these financial statements have been issued. The Company’s future
capital requirements and the adequacy of its available funds will depend on many factors, including the Company’s ability to successfully
commercialize its technology, competing technological and market developments, and the need to enter into collaborations with other companies
or acquire technologies to enhance or complement its current offerings. If the Company is not able to generate sufficient revenue from
license fees and royalties in a timeframe that satisfies its cash needs, it will need to raise more capital. In the event it requires
additional capital, it will endeavor to acquire additional funds through various financing sources, including the ATM Facility, follow-on
equity offerings, debt financing and joint ventures with industry partners. In addition to use of the ATM Facility and other capital
raising alternatives, the Company will consider alternatives to our current business plan that may enable it to achieve revenue-producing
operations and meaningful commercial success with a smaller amount of capital. If the Company is unable to secure sufficient additional
capital, it may be required to curtail our research and development initiatives and take additional measures to reduce costs in order
to conserve cash.</p>
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<p id="xdx_806_eus-gaap--BasisOfPresentationAndSignificantAccountingPoliciesTextBlock_zMMzT13KWthh" style="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: left"> </p>
<table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<tr style="vertical-align: top">
<td style="width: 48px"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>3.</b></span></td>
<td><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b><span id="xdx_82C_zvXx7r62zfJ4">SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES</span></b></span></td></tr>
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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"> </p>
<p id="xdx_846_ecustom--SignificantAccountingPoliciesPolicyTextBlock_zDQnOTLr8Sle" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><i><span id="xdx_866_zM7E958I4pog">Significant accounting policies</span></i></p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"> </p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in">There have been no material
changes in the Company’s significant accounting policies to those previously disclosed in the Company’s Annual Report on Form
10-K filed with the Securities and Exchange Commission (“SEC”) on February 15, 2023.</p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"> </p>
<p id="xdx_849_eus-gaap--BasisOfAccountingPolicyPolicyTextBlock_z356hwcwuD35" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><i><span id="xdx_860_zyJUSJUTweYe">Basis of presentation of unaudited condensed financial information</span></i></p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"> </p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in">The unaudited condensed financial
statements of the Company for the three months ended March 31, 2023 and 2022 have been prepared in accordance with accounting principles
generally accepted in the United States of America (“GAAP”) for interim financial information and pursuant to the requirements
for reporting on Form 10-Q and Article 8 of Regulation S-X. Accordingly, they do not include all the information and footnotes required
by GAAP for complete financial statements. However, such information reflects all adjustments (consisting solely of normal recurring adjustments)
which are, in the opinion of management, necessary for the fair presentation of the Company’s financial position and its results
of operations. Results shown for interim periods are not necessarily indicative of the results to be obtained for a full fiscal year.
The balance sheet information as of December 31, 2022 was derived from the audited financial statements included in the Company's financial
statements as of and for the year ended December 31, 2022, included in the Company’s Annual Report on Form 10-K filed with the SEC
on February 15, 2023. These unaudited condensed financial statements should be read in conjunction with that report.</p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"> </p>
<p id="xdx_84D_eus-gaap--CashAndCashEquivalentsPolicyTextBlock_zVZ060xABd2l" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><i><span id="xdx_861_zOpB1hqTpX25">Cash, cash equivalents, and short-term investments</span></i></p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"> </p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in">The Company considers all
highly liquid investments with an original maturity of three months or less, when purchased, to be cash equivalents. Cash equivalents
may be invested in money market funds or U.S. agency bonds. Cash and cash equivalents are carried at cost, which approximates their fair
value.</p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in"> </p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in">The Company's portfolio of
short-term investments is comprised solely of U.S. treasury bills and agency bonds with maturities of more than three months, but less
than one year. The Company classifies these as available-for-sale at purchase date and will reevaluate such designation at each period
end date. The Company may sell these marketable debt securities prior to their stated maturities depending upon changing liquidity requirements.</p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in"> </p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in">These debt securities are
classified as current assets in the consolidated balance sheet and recorded at fair value, with unrealized gains or losses included in
accumulated other comprehensive income (loss).</p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in"> </p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in">Gains and losses are recognized
when realized. Gains and losses are determined using the specific identification method and are reported in other income (expense), net
in the consolidated statements of operations.</p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in"> </p>
<p id="xdx_84B_eus-gaap--NewAccountingPronouncementsPolicyPolicyTextBlock_z03X1IkaUNzl" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><i><span id="xdx_866_zVhx2R9Zt479">Adoption of recent accounting standards</span></i></p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"> </p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in">From
time to time, new accounting standards are issued by the FASB that are adopted by the Company as of the specified effective date. No
new accounting standards, issued or effective during the period ended March 31, 2023, have had or are expected to have a significant impact
on the Company’s financial statements.</p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"/>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in; background-color: white"> </p>
<p id="xdx_846_ecustom--SignificantAccountingPoliciesPolicyTextBlock_zDQnOTLr8Sle" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><i><span id="xdx_866_zM7E958I4pog">Significant accounting policies</span></i></p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"> </p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in">There have been no material
changes in the Company’s significant accounting policies to those previously disclosed in the Company’s Annual Report on Form
10-K filed with the Securities and Exchange Commission (“SEC”) on February 15, 2023.</p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"> </p>
<p id="xdx_849_eus-gaap--BasisOfAccountingPolicyPolicyTextBlock_z356hwcwuD35" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><i><span id="xdx_860_zyJUSJUTweYe">Basis of presentation of unaudited condensed financial information</span></i></p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"> </p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in">The unaudited condensed financial
statements of the Company for the three months ended March 31, 2023 and 2022 have been prepared in accordance with accounting principles
generally accepted in the United States of America (“GAAP”) for interim financial information and pursuant to the requirements
for reporting on Form 10-Q and Article 8 of Regulation S-X. Accordingly, they do not include all the information and footnotes required
by GAAP for complete financial statements. However, such information reflects all adjustments (consisting solely of normal recurring adjustments)
which are, in the opinion of management, necessary for the fair presentation of the Company’s financial position and its results
of operations. Results shown for interim periods are not necessarily indicative of the results to be obtained for a full fiscal year.
The balance sheet information as of December 31, 2022 was derived from the audited financial statements included in the Company's financial
statements as of and for the year ended December 31, 2022, included in the Company’s Annual Report on Form 10-K filed with the SEC
on February 15, 2023. These unaudited condensed financial statements should be read in conjunction with that report.</p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"> </p>
<p id="xdx_84D_eus-gaap--CashAndCashEquivalentsPolicyTextBlock_zVZ060xABd2l" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><i><span id="xdx_861_zOpB1hqTpX25">Cash, cash equivalents, and short-term investments</span></i></p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"> </p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in">The Company considers all
highly liquid investments with an original maturity of three months or less, when purchased, to be cash equivalents. Cash equivalents
may be invested in money market funds or U.S. agency bonds. Cash and cash equivalents are carried at cost, which approximates their fair
value.</p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in"> </p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in">The Company's portfolio of
short-term investments is comprised solely of U.S. treasury bills and agency bonds with maturities of more than three months, but less
than one year. The Company classifies these as available-for-sale at purchase date and will reevaluate such designation at each period
end date. The Company may sell these marketable debt securities prior to their stated maturities depending upon changing liquidity requirements.</p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in"> </p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in">These debt securities are
classified as current assets in the consolidated balance sheet and recorded at fair value, with unrealized gains or losses included in
accumulated other comprehensive income (loss).</p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in"> </p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in">Gains and losses are recognized
when realized. Gains and losses are determined using the specific identification method and are reported in other income (expense), net
in the consolidated statements of operations.</p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in"> </p>
<p id="xdx_84B_eus-gaap--NewAccountingPronouncementsPolicyPolicyTextBlock_z03X1IkaUNzl" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><i><span id="xdx_866_zVhx2R9Zt479">Adoption of recent accounting standards</span></i></p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"> </p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in">From
time to time, new accounting standards are issued by the FASB that are adopted by the Company as of the specified effective date. No
new accounting standards, issued or effective during the period ended March 31, 2023, have had or are expected to have a significant impact
on the Company’s financial statements.</p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"/>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in; background-color: white"> </p>
<p id="xdx_80E_eus-gaap--FairValueDisclosuresTextBlock_zQjWlhajRBki" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><b>4. <span id="xdx_82D_zTJdpfUz2Q75">FAIR
VALUE MEASUREMENTS</span></b></p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"> </p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in">ASC 820, <i>Fair Value Measurements</i>
(“ASC 820”) states that fair value represents the amount that would be received to sell an asset or paid to transfer a liability
in an orderly transaction between market participants. As such, fair value is a market-based measurement that should be determined based
on assumptions that market participants would use in pricing an asset or a liability. The three-tiered fair value hierarchy, which prioritizes
which inputs should be used in measuring fair value, is comprised of:</p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"> </p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 20pt">Level 1 — Quoted prices (unadjusted) in active markets
for identical assets and liabilities.</p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"> </p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 20pt; text-align: justify">Level 2 — Inputs other than Level
1 that are observable, either directly or indirectly, such as unadjusted quoted prices for similar assets and liabilities, unadjusted
quoted prices in the markets that are not active, or other inputs that are observable or can be corroborated by observable market data
for substantially the full term of the assets or liabilities.</p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"> </p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 20pt">Level 3 — Unobservable inputs that are supported by
little or no market activity and that are significant to the fair value of the assets or liabilities.</p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; background-color: white"> </p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; background-color: white; text-indent: 0.5in">The
Company’s cash equivalents and short-term investments that were measured at fair value on a recurring basis as Level 1 assets.</p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; background-color: white; text-indent: 0.25in"> </p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; background-color: white; text-indent: 0.5in">The
Company’s cash, cash equivalents and short-term investments classified by security type as of March 31, 2023 and December 31, 2022
consisted of the following (in thousands):</p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; background-color: white"> </p>
<table cellpadding="0" cellspacing="0" id="xdx_888_eus-gaap--FairValueAssetsMeasuredOnRecurringBasisTextBlock_zYN1dGBfJWs" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%" summary="xdx: Disclosure - FAIR VALUE MEASUREMENTS (Details)">
<tr style="vertical-align: bottom">
<td style="padding-bottom: 1pt; font-size: 10pt; text-align: justify"><span id="xdx_8B2_z9Lcoiga40D6"><b style="display: none">Fair value measurements</b></span></td><td style="padding-bottom: 1pt; font-size: 10pt; font-weight: bold"> </td>
<td colspan="10" style="border-bottom: Black 1pt solid; font-size: 10pt; font-weight: bold; text-align: center">March 31, 2023</td><td style="padding-bottom: 1pt; font-size: 10pt; font-weight: bold"> </td><td style="padding-bottom: 1pt; font-size: 10pt; font-weight: bold"> </td>
<td colspan="10" style="border-bottom: Black 1pt solid; font-size: 10pt; font-weight: bold; text-align: center">December 31, 2022</td><td style="padding-bottom: 1pt; font-size: 10pt; font-weight: bold"> </td></tr>
<tr style="vertical-align: bottom">
<td style="padding-bottom: 1pt; font-size: 10pt; text-align: justify"> </td><td style="padding-bottom: 1pt; font-size: 10pt; font-weight: bold"> </td>
<td colspan="2" style="border-bottom: Black 1pt solid; font-size: 10pt; font-weight: bold; text-align: center">Cost</td><td style="padding-bottom: 1pt; font-size: 10pt; font-weight: bold"> </td><td style="padding-bottom: 1pt; font-size: 10pt; font-weight: bold"> </td>
<td colspan="2" style="border-bottom: Black 1pt solid; font-size: 10pt; font-weight: bold; text-align: center">Unrealized Gain/(Loss)</td><td style="padding-bottom: 1pt; font-size: 10pt; font-weight: bold"> </td><td style="padding-bottom: 1pt; font-size: 10pt; font-weight: bold"> </td>
<td colspan="2" style="border-bottom: Black 1pt solid; font-size: 10pt; font-weight: bold; text-align: center">Fair Value</td><td style="padding-bottom: 1pt; font-size: 10pt; font-weight: bold"> </td><td style="padding-bottom: 1pt; font-size: 10pt; font-weight: bold"> </td>
<td colspan="2" style="border-bottom: Black 1pt solid; font-size: 10pt; font-weight: bold; text-align: center">Cost</td><td style="padding-bottom: 1pt; font-size: 10pt; font-weight: bold"> </td><td style="padding-bottom: 1pt; font-size: 10pt; font-weight: bold"> </td>
<td colspan="2" style="border-bottom: Black 1pt solid; font-size: 10pt; font-weight: bold; text-align: center">Unrealized Gain/Loss</td><td style="padding-bottom: 1pt; font-size: 10pt; font-weight: bold"> </td><td style="padding-bottom: 1pt; font-size: 10pt; font-weight: bold"> </td>
<td colspan="2" style="border-bottom: Black 1pt solid; font-size: 10pt; font-weight: bold; text-align: center">Fair Value</td><td style="padding-bottom: 1pt; font-size: 10pt; font-weight: bold"> </td></tr>
<tr style="vertical-align: bottom; background-color: rgb(238,238,238)">
<td style="width: 22%; font-size: 10pt; text-align: justify">Cash</td><td style="width: 2%; font-size: 10pt"> </td>
<td style="width: 1%; font-size: 10pt; text-align: left">$</td><td id="xdx_982_eus-gaap--InvestmentOwnedAtCost_iI_c20230331__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel1Member__us-gaap--FairValueByMeasurementFrequencyAxis__us-gaap--FairValueMeasurementsRecurringMember__us-gaap--FinancialInstrumentAxis__us-gaap--CashMember_zqnliph9e8Ch" style="width: 9%; font-size: 10pt; text-align: right">167</td><td style="width: 1%; font-size: 10pt; text-align: left"> </td><td style="width: 2%; font-size: 10pt"> </td>
<td style="width: 1%; font-size: 10pt; text-align: left">$</td><td id="xdx_98A_eus-gaap--FairValueAssetRecurringBasisStillHeldUnrealizedGainLossOci_d0_c20230101__20230331__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel1Member__us-gaap--FairValueByMeasurementFrequencyAxis__us-gaap--FairValueMeasurementsRecurringMember__us-gaap--FinancialInstrumentAxis__us-gaap--CashMember_zZlc1A60SROf" style="width: 9%; font-size: 10pt; text-align: right">–</td><td style="width: 1%; font-size: 10pt; text-align: left"> </td><td style="width: 2%; font-size: 10pt"> </td>
<td style="width: 1%; font-size: 10pt; text-align: left">$</td><td id="xdx_98F_eus-gaap--AssetsFairValueDisclosure_iI_c20230331__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel1Member__us-gaap--FairValueByMeasurementFrequencyAxis__us-gaap--FairValueMeasurementsRecurringMember__us-gaap--FinancialInstrumentAxis__us-gaap--CashMember_znCvMYeykou1" style="width: 9%; font-size: 10pt; text-align: right">167</td><td style="width: 1%; font-size: 10pt; text-align: left"> </td><td style="width: 2%; font-size: 10pt"> </td>
<td style="width: 1%; font-size: 10pt; text-align: left">$</td><td id="xdx_98D_eus-gaap--InvestmentOwnedAtCost_iI_c20221231__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel1Member__us-gaap--FairValueByMeasurementFrequencyAxis__us-gaap--FairValueMeasurementsRecurringMember__us-gaap--FinancialInstrumentAxis__us-gaap--CashMember_zRXRGeEtRW3h" style="width: 9%; font-size: 10pt; text-align: right">1</td><td style="width: 1%; font-size: 10pt; text-align: left"> </td><td style="width: 2%; font-size: 10pt"> </td>
<td style="width: 1%; font-size: 10pt; text-align: left">$</td><td id="xdx_989_eus-gaap--FairValueAssetRecurringBasisStillHeldUnrealizedGainLossOci_d0_c20220101__20221231__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel1Member__us-gaap--FairValueByMeasurementFrequencyAxis__us-gaap--FairValueMeasurementsRecurringMember__us-gaap--FinancialInstrumentAxis__us-gaap--CashMember_zbdgpFsRtqgg" style="width: 9%; font-size: 10pt; text-align: right">–</td><td style="width: 1%; font-size: 10pt; text-align: left"> </td><td style="width: 2%; font-size: 10pt"> </td>
<td style="width: 1%; font-size: 10pt; text-align: left">$</td><td id="xdx_986_eus-gaap--AssetsFairValueDisclosure_iI_c20221231__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel1Member__us-gaap--FairValueByMeasurementFrequencyAxis__us-gaap--FairValueMeasurementsRecurringMember__us-gaap--FinancialInstrumentAxis__us-gaap--CashMember_zXYluqbzX633" style="width: 9%; font-size: 10pt; text-align: right">1</td><td style="width: 1%; font-size: 10pt; text-align: left"> </td></tr>
<tr style="vertical-align: bottom; background-color: White">
<td style="font-size: 10pt; text-align: justify">Money market funds</td><td style="font-size: 10pt"> </td>
<td style="font-size: 10pt; text-align: left"> </td><td id="xdx_98B_eus-gaap--InvestmentOwnedAtCost_iI_c20230331__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel1Member__us-gaap--FairValueByMeasurementFrequencyAxis__us-gaap--FairValueMeasurementsRecurringMember__us-gaap--FinancialInstrumentAxis__us-gaap--MoneyMarketFundsMember_zFOR5dAR6h6f" style="font-size: 10pt; text-align: right">10,957</td><td style="font-size: 10pt; text-align: left"> </td><td style="font-size: 10pt"> </td>
<td style="font-size: 10pt; text-align: left"> </td><td id="xdx_986_eus-gaap--FairValueAssetRecurringBasisStillHeldUnrealizedGainLossOci_d0_c20230101__20230331__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel1Member__us-gaap--FairValueByMeasurementFrequencyAxis__us-gaap--FairValueMeasurementsRecurringMember__us-gaap--FinancialInstrumentAxis__us-gaap--MoneyMarketFundsMember_zAe6qab2fJK7" style="font-size: 10pt; text-align: right">–</td><td style="font-size: 10pt; text-align: left"> </td><td style="font-size: 10pt"> </td>
<td style="font-size: 10pt; text-align: left"> </td><td id="xdx_98C_eus-gaap--AssetsFairValueDisclosure_iI_c20230331__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel1Member__us-gaap--FairValueByMeasurementFrequencyAxis__us-gaap--FairValueMeasurementsRecurringMember__us-gaap--FinancialInstrumentAxis__us-gaap--MoneyMarketFundsMember_ziyITOLhUaN5" style="font-size: 10pt; text-align: right">10,957</td><td style="font-size: 10pt; text-align: left"> </td><td style="font-size: 10pt"> </td>
<td style="font-size: 10pt; text-align: left"> </td><td id="xdx_98A_eus-gaap--InvestmentOwnedAtCost_iI_c20221231__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel1Member__us-gaap--FairValueByMeasurementFrequencyAxis__us-gaap--FairValueMeasurementsRecurringMember__us-gaap--FinancialInstrumentAxis__us-gaap--MoneyMarketFundsMember_zgCqA1L4gRA7" style="font-size: 10pt; text-align: right">21,183</td><td style="font-size: 10pt; text-align: left"> </td><td style="font-size: 10pt"> </td>
<td style="font-size: 10pt; text-align: left"> </td><td id="xdx_981_eus-gaap--FairValueAssetRecurringBasisStillHeldUnrealizedGainLossOci_d0_c20220101__20221231__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel1Member__us-gaap--FairValueByMeasurementFrequencyAxis__us-gaap--FairValueMeasurementsRecurringMember__us-gaap--FinancialInstrumentAxis__us-gaap--MoneyMarketFundsMember_zGM61RKEcCBa" style="font-size: 10pt; text-align: right">–</td><td style="font-size: 10pt; text-align: left"> </td><td style="font-size: 10pt"> </td>
<td style="font-size: 10pt; text-align: left"> </td><td id="xdx_982_eus-gaap--AssetsFairValueDisclosure_iI_c20221231__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel1Member__us-gaap--FairValueByMeasurementFrequencyAxis__us-gaap--FairValueMeasurementsRecurringMember__us-gaap--FinancialInstrumentAxis__us-gaap--MoneyMarketFundsMember_zMPxKPJXlXtl" style="font-size: 10pt; text-align: right">21,183</td><td style="font-size: 10pt; text-align: left"> </td></tr>
<tr style="vertical-align: bottom; background-color: rgb(238,238,238)">
<td style="font-size: 10pt; text-align: justify">US treasury bills</td><td style="font-size: 10pt"> </td>
<td style="font-size: 10pt; text-align: left"> </td><td id="xdx_983_eus-gaap--InvestmentOwnedAtCost_iI_c20230331__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel1Member__us-gaap--FairValueByMeasurementFrequencyAxis__us-gaap--FairValueMeasurementsRecurringMember__us-gaap--FinancialInstrumentAxis__custom--USTreasuryBillsMember_zRc82S0EqEIj" style="font-size: 10pt; text-align: right">1,963</td><td style="font-size: 10pt; text-align: left"> </td><td style="font-size: 10pt"> </td>
<td style="font-size: 10pt; text-align: left"> </td><td id="xdx_98A_eus-gaap--FairValueAssetRecurringBasisStillHeldUnrealizedGainLossOci_d0_c20230101__20230331__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel1Member__us-gaap--FairValueByMeasurementFrequencyAxis__us-gaap--FairValueMeasurementsRecurringMember__us-gaap--FinancialInstrumentAxis__custom--USTreasuryBillsMember_z8BVG1YIfYWc" style="font-size: 10pt; text-align: right">–</td><td style="font-size: 10pt; text-align: left"> </td><td style="font-size: 10pt"> </td>
<td style="font-size: 10pt; text-align: left"> </td><td id="xdx_989_eus-gaap--AssetsFairValueDisclosure_iI_c20230331__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel1Member__us-gaap--FairValueByMeasurementFrequencyAxis__us-gaap--FairValueMeasurementsRecurringMember__us-gaap--FinancialInstrumentAxis__custom--USTreasuryBillsMember_z4SrcWeRhfh3" style="font-size: 10pt; text-align: right">1,963</td><td style="font-size: 10pt; text-align: left"> </td><td style="font-size: 10pt"> </td>
<td style="font-size: 10pt; text-align: left"> </td><td id="xdx_980_eus-gaap--InvestmentOwnedAtCost_iI_d0_c20221231__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel1Member__us-gaap--FairValueByMeasurementFrequencyAxis__us-gaap--FairValueMeasurementsRecurringMember__us-gaap--FinancialInstrumentAxis__custom--USTreasuryBillsMember_zV6TSRPymrQj" style="font-size: 10pt; text-align: right">–</td><td style="font-size: 10pt; text-align: left"> </td><td style="font-size: 10pt"> </td>
<td style="font-size: 10pt; text-align: left"> </td><td id="xdx_98E_eus-gaap--FairValueAssetRecurringBasisStillHeldUnrealizedGainLossOci_d0_c20220101__20221231__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel1Member__us-gaap--FairValueByMeasurementFrequencyAxis__us-gaap--FairValueMeasurementsRecurringMember__us-gaap--FinancialInstrumentAxis__custom--USTreasuryBillsMember_zX4AcF8WQvU9" style="font-size: 10pt; text-align: right">–</td><td style="font-size: 10pt; text-align: left"> </td><td style="font-size: 10pt"> </td>
<td style="font-size: 10pt; text-align: left"> </td><td id="xdx_98C_eus-gaap--AssetsFairValueDisclosure_iI_d0_c20221231__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel1Member__us-gaap--FairValueByMeasurementFrequencyAxis__us-gaap--FairValueMeasurementsRecurringMember__us-gaap--FinancialInstrumentAxis__custom--USTreasuryBillsMember_zM6kkUHfub14" style="font-size: 10pt; text-align: right">–</td><td style="font-size: 10pt; text-align: left"> </td></tr>
<tr style="vertical-align: bottom; background-color: White">
<td style="padding-bottom: 1pt; font-size: 10pt; text-align: justify">US agency bonds</td><td style="padding-bottom: 1pt; font-size: 10pt"> </td>
<td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left"> </td><td id="xdx_98B_eus-gaap--InvestmentOwnedAtCost_iI_c20230331__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel1Member__us-gaap--FairValueByMeasurementFrequencyAxis__us-gaap--FairValueMeasurementsRecurringMember__us-gaap--FinancialInstrumentAxis__custom--USAgencyBondsMember_zNL4iJPcoNl4" style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">3,967</td><td style="padding-bottom: 1pt; font-size: 10pt; text-align: left"> </td><td style="padding-bottom: 1pt; font-size: 10pt"> </td>
<td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left"> </td><td id="xdx_98D_eus-gaap--FairValueAssetRecurringBasisStillHeldUnrealizedGainLossOci_d0_c20230101__20230331__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel1Member__us-gaap--FairValueByMeasurementFrequencyAxis__us-gaap--FairValueMeasurementsRecurringMember__us-gaap--FinancialInstrumentAxis__custom--USAgencyBondsMember_zRGbI3jyE4R9" style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">(2</td><td style="padding-bottom: 1pt; font-size: 10pt; text-align: left">)</td><td style="padding-bottom: 1pt; font-size: 10pt"> </td>
<td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left"> </td><td id="xdx_983_eus-gaap--AssetsFairValueDisclosure_iI_c20230331__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel1Member__us-gaap--FairValueByMeasurementFrequencyAxis__us-gaap--FairValueMeasurementsRecurringMember__us-gaap--FinancialInstrumentAxis__custom--USAgencyBondsMember_z09zsSecH4z7" style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">3,965</td><td style="padding-bottom: 1pt; font-size: 10pt; text-align: left"> </td><td style="padding-bottom: 1pt; font-size: 10pt"> </td>
<td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left"> </td><td id="xdx_98C_eus-gaap--InvestmentOwnedAtCost_iI_d0_c20221231__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel1Member__us-gaap--FairValueByMeasurementFrequencyAxis__us-gaap--FairValueMeasurementsRecurringMember__us-gaap--FinancialInstrumentAxis__custom--USAgencyBondsMember_zXumGzMaTNti" style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">–</td><td style="padding-bottom: 1pt; font-size: 10pt; text-align: left"> </td><td style="padding-bottom: 1pt; font-size: 10pt"> </td>
<td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left"> </td><td id="xdx_980_eus-gaap--FairValueAssetRecurringBasisStillHeldUnrealizedGainLossOci_d0_c20220101__20221231__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel1Member__us-gaap--FairValueByMeasurementFrequencyAxis__us-gaap--FairValueMeasurementsRecurringMember__us-gaap--FinancialInstrumentAxis__custom--USAgencyBondsMember_z174iph1DyRh" style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">–</td><td style="padding-bottom: 1pt; font-size: 10pt; text-align: left"> </td><td style="padding-bottom: 1pt; font-size: 10pt"> </td>
<td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left"> </td><td id="xdx_986_eus-gaap--AssetsFairValueDisclosure_iI_d0_c20221231__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel1Member__us-gaap--FairValueByMeasurementFrequencyAxis__us-gaap--FairValueMeasurementsRecurringMember__us-gaap--FinancialInstrumentAxis__custom--USAgencyBondsMember_zq11m2LQT7M9" style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">–</td><td style="padding-bottom: 1pt; font-size: 10pt; text-align: left"> </td></tr>
<tr style="vertical-align: bottom; background-color: rgb(238,238,238)">
<td style="padding-left: 10pt; padding-bottom: 2.5pt; font-size: 10pt; text-align: justify">Total</td><td style="padding-bottom: 2.5pt; font-size: 10pt"> </td>
<td style="border-bottom: Black 2.5pt double; font-size: 10pt; text-align: left">$</td><td id="xdx_987_eus-gaap--InvestmentOwnedAtCost_iI_c20230331__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel1Member__us-gaap--FairValueByMeasurementFrequencyAxis__us-gaap--FairValueMeasurementsRecurringMember_z2sQkV3xSzL1" style="border-bottom: Black 2.5pt double; font-size: 10pt; text-align: right">17,054</td><td style="padding-bottom: 2.5pt; font-size: 10pt; text-align: left"> </td><td style="padding-bottom: 2.5pt; font-size: 10pt"> </td>
<td style="border-bottom: Black 2.5pt double; font-size: 10pt; text-align: left">$</td><td id="xdx_98E_eus-gaap--FairValueAssetRecurringBasisStillHeldUnrealizedGainLossOci_d0_c20230101__20230331__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel1Member__us-gaap--FairValueByMeasurementFrequencyAxis__us-gaap--FairValueMeasurementsRecurringMember_zQnnDUkVknlk" style="border-bottom: Black 2.5pt double; font-size: 10pt; text-align: right">(2</td><td style="padding-bottom: 2.5pt; font-size: 10pt; text-align: left">)</td><td style="padding-bottom: 2.5pt; font-size: 10pt"> </td>
<td style="border-bottom: Black 2.5pt double; font-size: 10pt; text-align: left">$</td><td id="xdx_981_eus-gaap--AssetsFairValueDisclosure_iI_c20230331__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel1Member__us-gaap--FairValueByMeasurementFrequencyAxis__us-gaap--FairValueMeasurementsRecurringMember_zl1z9kZBhiFc" style="border-bottom: Black 2.5pt double; font-size: 10pt; text-align: right">17,052</td><td style="padding-bottom: 2.5pt; font-size: 10pt; text-align: left"> </td><td style="padding-bottom: 2.5pt; font-size: 10pt"> </td>
<td style="border-bottom: Black 2.5pt double; font-size: 10pt; text-align: left">$</td><td id="xdx_981_eus-gaap--InvestmentOwnedAtCost_iI_c20221231__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel1Member__us-gaap--FairValueByMeasurementFrequencyAxis__us-gaap--FairValueMeasurementsRecurringMember_zFJ5AOKnfgl7" style="border-bottom: Black 2.5pt double; font-size: 10pt; text-align: right">21,184</td><td style="padding-bottom: 2.5pt; font-size: 10pt; text-align: left"> </td><td style="padding-bottom: 2.5pt; font-size: 10pt"> </td>
<td style="border-bottom: Black 2.5pt double; font-size: 10pt; text-align: left">$</td><td id="xdx_98C_eus-gaap--FairValueAssetRecurringBasisStillHeldUnrealizedGainLossOci_d0_c20220101__20221231__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel1Member__us-gaap--FairValueByMeasurementFrequencyAxis__us-gaap--FairValueMeasurementsRecurringMember_zYcp50SuCuHi" style="border-bottom: Black 2.5pt double; font-size: 10pt; text-align: right">–</td><td style="padding-bottom: 2.5pt; font-size: 10pt; text-align: left"> </td><td style="padding-bottom: 2.5pt; font-size: 10pt"> </td>
<td style="border-bottom: Black 2.5pt double; font-size: 10pt; text-align: left">$</td><td id="xdx_986_eus-gaap--AssetsFairValueDisclosure_iI_c20221231__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel1Member__us-gaap--FairValueByMeasurementFrequencyAxis__us-gaap--FairValueMeasurementsRecurringMember_zMeDVxoHfgya" style="border-bottom: Black 2.5pt double; font-size: 10pt; text-align: right">21,184</td><td style="padding-bottom: 2.5pt; font-size: 10pt; text-align: left"> </td></tr>
</table>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; background-color: white"> </p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in">Interest receivable of approximately
$<span id="xdx_903_eus-gaap--InterestReceivable_iI_c20230331_zEnJKGB48xF">46,000</span> as of March 31, 2023 is recorded in prepaids and other current assets in the condensed consolidated balance sheets. This includes
approximately $<span id="xdx_905_eus-gaap--InterestReceivable_iI_c20230331__us-gaap--BalanceSheetLocationAxis__custom--PurchasedAccruedInterestMember_z4RjIIFamUAc">14,000</span> of purchased accrued interest. For the period ended December 31, 2022, there was $<span id="xdx_90F_eus-gaap--InterestReceivable_iI_c20221231_zowjc8aLtdR5">0</span> interest receivable recorded
in the condensed consolidated balance sheets.</p>
<table cellpadding="0" cellspacing="0" id="xdx_888_eus-gaap--FairValueAssetsMeasuredOnRecurringBasisTextBlock_zYN1dGBfJWs" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%" summary="xdx: Disclosure - FAIR VALUE MEASUREMENTS (Details)">
<tr style="vertical-align: bottom">
<td style="padding-bottom: 1pt; font-size: 10pt; text-align: justify"><span id="xdx_8B2_z9Lcoiga40D6"><b style="display: none">Fair value measurements</b></span></td><td style="padding-bottom: 1pt; font-size: 10pt; font-weight: bold"> </td>
<td colspan="10" style="border-bottom: Black 1pt solid; font-size: 10pt; font-weight: bold; text-align: center">March 31, 2023</td><td style="padding-bottom: 1pt; font-size: 10pt; font-weight: bold"> </td><td style="padding-bottom: 1pt; font-size: 10pt; font-weight: bold"> </td>
<td colspan="10" style="border-bottom: Black 1pt solid; font-size: 10pt; font-weight: bold; text-align: center">December 31, 2022</td><td style="padding-bottom: 1pt; font-size: 10pt; font-weight: bold"> </td></tr>
<tr style="vertical-align: bottom">
<td style="padding-bottom: 1pt; font-size: 10pt; text-align: justify"> </td><td style="padding-bottom: 1pt; font-size: 10pt; font-weight: bold"> </td>
<td colspan="2" style="border-bottom: Black 1pt solid; font-size: 10pt; font-weight: bold; text-align: center">Cost</td><td style="padding-bottom: 1pt; font-size: 10pt; font-weight: bold"> </td><td style="padding-bottom: 1pt; font-size: 10pt; font-weight: bold"> </td>
<td colspan="2" style="border-bottom: Black 1pt solid; font-size: 10pt; font-weight: bold; text-align: center">Unrealized Gain/(Loss)</td><td style="padding-bottom: 1pt; font-size: 10pt; font-weight: bold"> </td><td style="padding-bottom: 1pt; font-size: 10pt; font-weight: bold"> </td>
<td colspan="2" style="border-bottom: Black 1pt solid; font-size: 10pt; font-weight: bold; text-align: center">Fair Value</td><td style="padding-bottom: 1pt; font-size: 10pt; font-weight: bold"> </td><td style="padding-bottom: 1pt; font-size: 10pt; font-weight: bold"> </td>
<td colspan="2" style="border-bottom: Black 1pt solid; font-size: 10pt; font-weight: bold; text-align: center">Cost</td><td style="padding-bottom: 1pt; font-size: 10pt; font-weight: bold"> </td><td style="padding-bottom: 1pt; font-size: 10pt; font-weight: bold"> </td>
<td colspan="2" style="border-bottom: Black 1pt solid; font-size: 10pt; font-weight: bold; text-align: center">Unrealized Gain/Loss</td><td style="padding-bottom: 1pt; font-size: 10pt; font-weight: bold"> </td><td style="padding-bottom: 1pt; font-size: 10pt; font-weight: bold"> </td>
<td colspan="2" style="border-bottom: Black 1pt solid; font-size: 10pt; font-weight: bold; text-align: center">Fair Value</td><td style="padding-bottom: 1pt; font-size: 10pt; font-weight: bold"> </td></tr>
<tr style="vertical-align: bottom; background-color: rgb(238,238,238)">
<td style="width: 22%; font-size: 10pt; text-align: justify">Cash</td><td style="width: 2%; font-size: 10pt"> </td>
<td style="width: 1%; font-size: 10pt; text-align: left">$</td><td id="xdx_982_eus-gaap--InvestmentOwnedAtCost_iI_c20230331__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel1Member__us-gaap--FairValueByMeasurementFrequencyAxis__us-gaap--FairValueMeasurementsRecurringMember__us-gaap--FinancialInstrumentAxis__us-gaap--CashMember_zqnliph9e8Ch" style="width: 9%; font-size: 10pt; text-align: right">167</td><td style="width: 1%; font-size: 10pt; text-align: left"> </td><td style="width: 2%; font-size: 10pt"> </td>
<td style="width: 1%; font-size: 10pt; text-align: left">$</td><td id="xdx_98A_eus-gaap--FairValueAssetRecurringBasisStillHeldUnrealizedGainLossOci_d0_c20230101__20230331__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel1Member__us-gaap--FairValueByMeasurementFrequencyAxis__us-gaap--FairValueMeasurementsRecurringMember__us-gaap--FinancialInstrumentAxis__us-gaap--CashMember_zZlc1A60SROf" style="width: 9%; font-size: 10pt; text-align: right">–</td><td style="width: 1%; font-size: 10pt; text-align: left"> </td><td style="width: 2%; font-size: 10pt"> </td>
<td style="width: 1%; font-size: 10pt; text-align: left">$</td><td id="xdx_98F_eus-gaap--AssetsFairValueDisclosure_iI_c20230331__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel1Member__us-gaap--FairValueByMeasurementFrequencyAxis__us-gaap--FairValueMeasurementsRecurringMember__us-gaap--FinancialInstrumentAxis__us-gaap--CashMember_znCvMYeykou1" style="width: 9%; font-size: 10pt; text-align: right">167</td><td style="width: 1%; font-size: 10pt; text-align: left"> </td><td style="width: 2%; font-size: 10pt"> </td>
<td style="width: 1%; font-size: 10pt; text-align: left">$</td><td id="xdx_98D_eus-gaap--InvestmentOwnedAtCost_iI_c20221231__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel1Member__us-gaap--FairValueByMeasurementFrequencyAxis__us-gaap--FairValueMeasurementsRecurringMember__us-gaap--FinancialInstrumentAxis__us-gaap--CashMember_zRXRGeEtRW3h" style="width: 9%; font-size: 10pt; text-align: right">1</td><td style="width: 1%; font-size: 10pt; text-align: left"> </td><td style="width: 2%; font-size: 10pt"> </td>
<td style="width: 1%; font-size: 10pt; text-align: left">$</td><td id="xdx_989_eus-gaap--FairValueAssetRecurringBasisStillHeldUnrealizedGainLossOci_d0_c20220101__20221231__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel1Member__us-gaap--FairValueByMeasurementFrequencyAxis__us-gaap--FairValueMeasurementsRecurringMember__us-gaap--FinancialInstrumentAxis__us-gaap--CashMember_zbdgpFsRtqgg" style="width: 9%; font-size: 10pt; text-align: right">–</td><td style="width: 1%; font-size: 10pt; text-align: left"> </td><td style="width: 2%; font-size: 10pt"> </td>
<td style="width: 1%; font-size: 10pt; text-align: left">$</td><td id="xdx_986_eus-gaap--AssetsFairValueDisclosure_iI_c20221231__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel1Member__us-gaap--FairValueByMeasurementFrequencyAxis__us-gaap--FairValueMeasurementsRecurringMember__us-gaap--FinancialInstrumentAxis__us-gaap--CashMember_zXYluqbzX633" style="width: 9%; font-size: 10pt; text-align: right">1</td><td style="width: 1%; font-size: 10pt; text-align: left"> </td></tr>
<tr style="vertical-align: bottom; background-color: White">
<td style="font-size: 10pt; text-align: justify">Money market funds</td><td style="font-size: 10pt"> </td>
<td style="font-size: 10pt; text-align: left"> </td><td id="xdx_98B_eus-gaap--InvestmentOwnedAtCost_iI_c20230331__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel1Member__us-gaap--FairValueByMeasurementFrequencyAxis__us-gaap--FairValueMeasurementsRecurringMember__us-gaap--FinancialInstrumentAxis__us-gaap--MoneyMarketFundsMember_zFOR5dAR6h6f" style="font-size: 10pt; text-align: right">10,957</td><td style="font-size: 10pt; text-align: left"> </td><td style="font-size: 10pt"> </td>
<td style="font-size: 10pt; text-align: left"> </td><td id="xdx_986_eus-gaap--FairValueAssetRecurringBasisStillHeldUnrealizedGainLossOci_d0_c20230101__20230331__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel1Member__us-gaap--FairValueByMeasurementFrequencyAxis__us-gaap--FairValueMeasurementsRecurringMember__us-gaap--FinancialInstrumentAxis__us-gaap--MoneyMarketFundsMember_zAe6qab2fJK7" style="font-size: 10pt; text-align: right">–</td><td style="font-size: 10pt; text-align: left"> </td><td style="font-size: 10pt"> </td>
<td style="font-size: 10pt; text-align: left"> </td><td id="xdx_98C_eus-gaap--AssetsFairValueDisclosure_iI_c20230331__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel1Member__us-gaap--FairValueByMeasurementFrequencyAxis__us-gaap--FairValueMeasurementsRecurringMember__us-gaap--FinancialInstrumentAxis__us-gaap--MoneyMarketFundsMember_ziyITOLhUaN5" style="font-size: 10pt; text-align: right">10,957</td><td style="font-size: 10pt; text-align: left"> </td><td style="font-size: 10pt"> </td>
<td style="font-size: 10pt; text-align: left"> </td><td id="xdx_98A_eus-gaap--InvestmentOwnedAtCost_iI_c20221231__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel1Member__us-gaap--FairValueByMeasurementFrequencyAxis__us-gaap--FairValueMeasurementsRecurringMember__us-gaap--FinancialInstrumentAxis__us-gaap--MoneyMarketFundsMember_zgCqA1L4gRA7" style="font-size: 10pt; text-align: right">21,183</td><td style="font-size: 10pt; text-align: left"> </td><td style="font-size: 10pt"> </td>
<td style="font-size: 10pt; text-align: left"> </td><td id="xdx_981_eus-gaap--FairValueAssetRecurringBasisStillHeldUnrealizedGainLossOci_d0_c20220101__20221231__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel1Member__us-gaap--FairValueByMeasurementFrequencyAxis__us-gaap--FairValueMeasurementsRecurringMember__us-gaap--FinancialInstrumentAxis__us-gaap--MoneyMarketFundsMember_zGM61RKEcCBa" style="font-size: 10pt; text-align: right">–</td><td style="font-size: 10pt; text-align: left"> </td><td style="font-size: 10pt"> </td>
<td style="font-size: 10pt; text-align: left"> </td><td id="xdx_982_eus-gaap--AssetsFairValueDisclosure_iI_c20221231__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel1Member__us-gaap--FairValueByMeasurementFrequencyAxis__us-gaap--FairValueMeasurementsRecurringMember__us-gaap--FinancialInstrumentAxis__us-gaap--MoneyMarketFundsMember_zMPxKPJXlXtl" style="font-size: 10pt; text-align: right">21,183</td><td style="font-size: 10pt; text-align: left"> </td></tr>
<tr style="vertical-align: bottom; background-color: rgb(238,238,238)">
<td style="font-size: 10pt; text-align: justify">US treasury bills</td><td style="font-size: 10pt"> </td>
<td style="font-size: 10pt; text-align: left"> </td><td id="xdx_983_eus-gaap--InvestmentOwnedAtCost_iI_c20230331__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel1Member__us-gaap--FairValueByMeasurementFrequencyAxis__us-gaap--FairValueMeasurementsRecurringMember__us-gaap--FinancialInstrumentAxis__custom--USTreasuryBillsMember_zRc82S0EqEIj" style="font-size: 10pt; text-align: right">1,963</td><td style="font-size: 10pt; text-align: left"> </td><td style="font-size: 10pt"> </td>
<td style="font-size: 10pt; text-align: left"> </td><td id="xdx_98A_eus-gaap--FairValueAssetRecurringBasisStillHeldUnrealizedGainLossOci_d0_c20230101__20230331__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel1Member__us-gaap--FairValueByMeasurementFrequencyAxis__us-gaap--FairValueMeasurementsRecurringMember__us-gaap--FinancialInstrumentAxis__custom--USTreasuryBillsMember_z8BVG1YIfYWc" style="font-size: 10pt; text-align: right">–</td><td style="font-size: 10pt; text-align: left"> </td><td style="font-size: 10pt"> </td>
<td style="font-size: 10pt; text-align: left"> </td><td id="xdx_989_eus-gaap--AssetsFairValueDisclosure_iI_c20230331__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel1Member__us-gaap--FairValueByMeasurementFrequencyAxis__us-gaap--FairValueMeasurementsRecurringMember__us-gaap--FinancialInstrumentAxis__custom--USTreasuryBillsMember_z4SrcWeRhfh3" style="font-size: 10pt; text-align: right">1,963</td><td style="font-size: 10pt; text-align: left"> </td><td style="font-size: 10pt"> </td>
<td style="font-size: 10pt; text-align: left"> </td><td id="xdx_980_eus-gaap--InvestmentOwnedAtCost_iI_d0_c20221231__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel1Member__us-gaap--FairValueByMeasurementFrequencyAxis__us-gaap--FairValueMeasurementsRecurringMember__us-gaap--FinancialInstrumentAxis__custom--USTreasuryBillsMember_zV6TSRPymrQj" style="font-size: 10pt; text-align: right">–</td><td style="font-size: 10pt; text-align: left"> </td><td style="font-size: 10pt"> </td>
<td style="font-size: 10pt; text-align: left"> </td><td id="xdx_98E_eus-gaap--FairValueAssetRecurringBasisStillHeldUnrealizedGainLossOci_d0_c20220101__20221231__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel1Member__us-gaap--FairValueByMeasurementFrequencyAxis__us-gaap--FairValueMeasurementsRecurringMember__us-gaap--FinancialInstrumentAxis__custom--USTreasuryBillsMember_zX4AcF8WQvU9" style="font-size: 10pt; text-align: right">–</td><td style="font-size: 10pt; text-align: left"> </td><td style="font-size: 10pt"> </td>
<td style="font-size: 10pt; text-align: left"> </td><td id="xdx_98C_eus-gaap--AssetsFairValueDisclosure_iI_d0_c20221231__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel1Member__us-gaap--FairValueByMeasurementFrequencyAxis__us-gaap--FairValueMeasurementsRecurringMember__us-gaap--FinancialInstrumentAxis__custom--USTreasuryBillsMember_zM6kkUHfub14" style="font-size: 10pt; text-align: right">–</td><td style="font-size: 10pt; text-align: left"> </td></tr>
<tr style="vertical-align: bottom; background-color: White">
<td style="padding-bottom: 1pt; font-size: 10pt; text-align: justify">US agency bonds</td><td style="padding-bottom: 1pt; font-size: 10pt"> </td>
<td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left"> </td><td id="xdx_98B_eus-gaap--InvestmentOwnedAtCost_iI_c20230331__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel1Member__us-gaap--FairValueByMeasurementFrequencyAxis__us-gaap--FairValueMeasurementsRecurringMember__us-gaap--FinancialInstrumentAxis__custom--USAgencyBondsMember_zNL4iJPcoNl4" style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">3,967</td><td style="padding-bottom: 1pt; font-size: 10pt; text-align: left"> </td><td style="padding-bottom: 1pt; font-size: 10pt"> </td>
<td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left"> </td><td id="xdx_98D_eus-gaap--FairValueAssetRecurringBasisStillHeldUnrealizedGainLossOci_d0_c20230101__20230331__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel1Member__us-gaap--FairValueByMeasurementFrequencyAxis__us-gaap--FairValueMeasurementsRecurringMember__us-gaap--FinancialInstrumentAxis__custom--USAgencyBondsMember_zRGbI3jyE4R9" style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">(2</td><td style="padding-bottom: 1pt; font-size: 10pt; text-align: left">)</td><td style="padding-bottom: 1pt; font-size: 10pt"> </td>
<td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left"> </td><td id="xdx_983_eus-gaap--AssetsFairValueDisclosure_iI_c20230331__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel1Member__us-gaap--FairValueByMeasurementFrequencyAxis__us-gaap--FairValueMeasurementsRecurringMember__us-gaap--FinancialInstrumentAxis__custom--USAgencyBondsMember_z09zsSecH4z7" style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">3,965</td><td style="padding-bottom: 1pt; font-size: 10pt; text-align: left"> </td><td style="padding-bottom: 1pt; font-size: 10pt"> </td>
<td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left"> </td><td id="xdx_98C_eus-gaap--InvestmentOwnedAtCost_iI_d0_c20221231__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel1Member__us-gaap--FairValueByMeasurementFrequencyAxis__us-gaap--FairValueMeasurementsRecurringMember__us-gaap--FinancialInstrumentAxis__custom--USAgencyBondsMember_zXumGzMaTNti" style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">–</td><td style="padding-bottom: 1pt; font-size: 10pt; text-align: left"> </td><td style="padding-bottom: 1pt; font-size: 10pt"> </td>
<td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left"> </td><td id="xdx_980_eus-gaap--FairValueAssetRecurringBasisStillHeldUnrealizedGainLossOci_d0_c20220101__20221231__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel1Member__us-gaap--FairValueByMeasurementFrequencyAxis__us-gaap--FairValueMeasurementsRecurringMember__us-gaap--FinancialInstrumentAxis__custom--USAgencyBondsMember_z174iph1DyRh" style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">–</td><td style="padding-bottom: 1pt; font-size: 10pt; text-align: left"> </td><td style="padding-bottom: 1pt; font-size: 10pt"> </td>
<td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left"> </td><td id="xdx_986_eus-gaap--AssetsFairValueDisclosure_iI_d0_c20221231__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel1Member__us-gaap--FairValueByMeasurementFrequencyAxis__us-gaap--FairValueMeasurementsRecurringMember__us-gaap--FinancialInstrumentAxis__custom--USAgencyBondsMember_zq11m2LQT7M9" style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">–</td><td style="padding-bottom: 1pt; font-size: 10pt; text-align: left"> </td></tr>
<tr style="vertical-align: bottom; background-color: rgb(238,238,238)">
<td style="padding-left: 10pt; padding-bottom: 2.5pt; font-size: 10pt; text-align: justify">Total</td><td style="padding-bottom: 2.5pt; font-size: 10pt"> </td>
<td style="border-bottom: Black 2.5pt double; font-size: 10pt; text-align: left">$</td><td id="xdx_987_eus-gaap--InvestmentOwnedAtCost_iI_c20230331__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel1Member__us-gaap--FairValueByMeasurementFrequencyAxis__us-gaap--FairValueMeasurementsRecurringMember_z2sQkV3xSzL1" style="border-bottom: Black 2.5pt double; font-size: 10pt; text-align: right">17,054</td><td style="padding-bottom: 2.5pt; font-size: 10pt; text-align: left"> </td><td style="padding-bottom: 2.5pt; font-size: 10pt"> </td>
<td style="border-bottom: Black 2.5pt double; font-size: 10pt; text-align: left">$</td><td id="xdx_98E_eus-gaap--FairValueAssetRecurringBasisStillHeldUnrealizedGainLossOci_d0_c20230101__20230331__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel1Member__us-gaap--FairValueByMeasurementFrequencyAxis__us-gaap--FairValueMeasurementsRecurringMember_zQnnDUkVknlk" style="border-bottom: Black 2.5pt double; font-size: 10pt; text-align: right">(2</td><td style="padding-bottom: 2.5pt; font-size: 10pt; text-align: left">)</td><td style="padding-bottom: 2.5pt; font-size: 10pt"> </td>
<td style="border-bottom: Black 2.5pt double; font-size: 10pt; text-align: left">$</td><td id="xdx_981_eus-gaap--AssetsFairValueDisclosure_iI_c20230331__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel1Member__us-gaap--FairValueByMeasurementFrequencyAxis__us-gaap--FairValueMeasurementsRecurringMember_zl1z9kZBhiFc" style="border-bottom: Black 2.5pt double; font-size: 10pt; text-align: right">17,052</td><td style="padding-bottom: 2.5pt; font-size: 10pt; text-align: left"> </td><td style="padding-bottom: 2.5pt; font-size: 10pt"> </td>
<td style="border-bottom: Black 2.5pt double; font-size: 10pt; text-align: left">$</td><td id="xdx_981_eus-gaap--InvestmentOwnedAtCost_iI_c20221231__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel1Member__us-gaap--FairValueByMeasurementFrequencyAxis__us-gaap--FairValueMeasurementsRecurringMember_zFJ5AOKnfgl7" style="border-bottom: Black 2.5pt double; font-size: 10pt; text-align: right">21,184</td><td style="padding-bottom: 2.5pt; font-size: 10pt; text-align: left"> </td><td style="padding-bottom: 2.5pt; font-size: 10pt"> </td>
<td style="border-bottom: Black 2.5pt double; font-size: 10pt; text-align: left">$</td><td id="xdx_98C_eus-gaap--FairValueAssetRecurringBasisStillHeldUnrealizedGainLossOci_d0_c20220101__20221231__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel1Member__us-gaap--FairValueByMeasurementFrequencyAxis__us-gaap--FairValueMeasurementsRecurringMember_zYcp50SuCuHi" style="border-bottom: Black 2.5pt double; font-size: 10pt; text-align: right">–</td><td style="padding-bottom: 2.5pt; font-size: 10pt; text-align: left"> </td><td style="padding-bottom: 2.5pt; font-size: 10pt"> </td>
<td style="border-bottom: Black 2.5pt double; font-size: 10pt; text-align: left">$</td><td id="xdx_986_eus-gaap--AssetsFairValueDisclosure_iI_c20221231__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel1Member__us-gaap--FairValueByMeasurementFrequencyAxis__us-gaap--FairValueMeasurementsRecurringMember_zMeDVxoHfgya" style="border-bottom: Black 2.5pt double; font-size: 10pt; text-align: right">21,184</td><td style="padding-bottom: 2.5pt; font-size: 10pt; text-align: left"> </td></tr>
</table>
167
0
167
1
0
1
10957
0
10957
21183
0
21183
1963
0
1963
0
0
0
3967
-2
3965
0
0
0
17054
-2
17052
21184
0
21184
46000
14000
0
<p id="xdx_80A_eus-gaap--RevenueFromContractWithCustomerTextBlock_zGRFMsE2u9hj" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; background-color: white"> </p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; background-color: white"/>
<table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<tr style="vertical-align: top">
<td style="width: 48px"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>5.</b></span></td>
<td><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b><span id="xdx_827_zmmU2ptdM8Aa">REVENUE</span></b></span></td></tr>
</table>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"> </p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in">The Company recognizes revenue
in accordance with Accounting Standards Codification (“ASC”) No. 606. The Company generates revenues from engineering service
contracts, license agreements and joint development agreements. The amount of revenue that the Company recognizes reflects the consideration
it expects to receive in exchange for goods or services and such revenue is recognized when the Company satisfies a performance obligation
by transferring the product or service to the customer. When the Company’s performance obligation is the promise to grant a license,
revenue is recognized either at a point in time (such as a right to <i>use</i> licensed technology that is under the customer’s
control), or over time (typically a right to <i>access</i> technology without obtaining control).</p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"> </p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">The following table provides information about
disaggregated revenue by primary geographical markets and timing of revenue recognition (in thousands):<b><i> </i></b></p>
<table cellpadding="0" cellspacing="0" id="xdx_88B_eus-gaap--DisaggregationOfRevenueTableTextBlock_pn3n3_zuv2R6Jdc1zf" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%" summary="xdx: Disclosure - REVENUE (Details)">
<tr style="vertical-align: bottom">
<td><span id="xdx_8BB_zqfTTbdtVH94" style="display: none">Schedule of disaggregated revenue and timing of revenue</span> </td><td> </td>
<td colspan="2" style="text-align: right"> </td><td> </td><td> </td>
<td colspan="2" style="text-align: right"> </td><td> </td></tr>
<tr style="vertical-align: bottom">
<td> </td><td style="font-weight: bold; padding-bottom: 1pt"> </td>
<td colspan="6" style="border-bottom: Black 1pt solid; font-weight: bold; text-align: center">Three Months Ended <br/>
March 31,</td><td style="padding-bottom: 1pt; font-weight: bold"> </td></tr>
<tr style="vertical-align: bottom">
<td> </td><td style="font-weight: bold; padding-bottom: 1pt"> </td>
<td colspan="2" style="border-bottom: Black 1pt solid; font-weight: bold; text-align: center">2023</td><td style="padding-bottom: 1pt; font-weight: bold"> </td><td style="font-weight: bold; padding-bottom: 1pt"> </td>
<td colspan="2" style="border-bottom: Black 1pt solid; font-weight: bold; text-align: center">2022</td><td style="padding-bottom: 1pt; font-weight: bold"> </td></tr>
<tr style="vertical-align: bottom; background-color: rgb(238,238,238)">
<td style="text-align: left">Primary geographic markets</td><td> </td>
<td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td><td> </td>
<td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td></tr>
<tr style="vertical-align: bottom; background-color: White">
<td style="padding-left: 10pt; width: 66%; text-align: left">North America</td><td style="width: 2%"> </td>
<td style="width: 1%; text-align: left">$</td><td id="xdx_98E_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_pn3n3_d0_c20230101__20230331__srt--StatementGeographicalAxis__srt--NorthAmericaMember_zTbj03blc5Vf" style="width: 13%; text-align: right" title="Revenue">–</td><td style="width: 1%; text-align: left"> </td><td style="width: 2%"> </td>
<td style="width: 1%; text-align: left">$</td><td id="xdx_988_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_c20220101__20220331__srt--StatementGeographicalAxis__srt--NorthAmericaMember_pn3n3" style="width: 13%; text-align: right" title="Revenue">75</td><td style="width: 1%; text-align: left"> </td></tr>
<tr style="vertical-align: bottom; background-color: rgb(238,238,238)">
<td style="padding-left: 10pt; text-align: left; padding-bottom: 1pt">Asia Pacific</td><td style="padding-bottom: 1pt"> </td>
<td style="border-bottom: Black 1pt solid; text-align: left"> </td><td id="xdx_98C_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_pn3n3_d0_c20230101__20230331__srt--StatementGeographicalAxis__srt--AsiaPacificMember_zJLyFiAewAg7" style="border-bottom: Black 1pt solid; text-align: right" title="Revenue">–</td><td style="padding-bottom: 1pt; text-align: left"> </td><td style="padding-bottom: 1pt"> </td>
<td style="border-bottom: Black 1pt solid; text-align: left"> </td><td id="xdx_987_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_c20220101__20220331__srt--StatementGeographicalAxis__srt--AsiaPacificMember_pn3n3" style="border-bottom: Black 1pt solid; text-align: right" title="Revenue">300</td><td style="padding-bottom: 1pt; text-align: left"> </td></tr>
<tr style="vertical-align: bottom; background-color: White">
<td style="padding-left: 20pt; padding-bottom: 2.5pt">Total</td><td style="padding-bottom: 2.5pt"> </td>
<td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td id="xdx_982_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_pn3n3_d0_c20230101__20230331_zFGgyigEMUda" style="border-bottom: Black 2.5pt double; text-align: right" title="Revenue">–</td><td style="padding-bottom: 2.5pt; text-align: left"> </td><td style="padding-bottom: 2.5pt"> </td>
<td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td id="xdx_98E_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_pn3n3_c20220101__20220331_zVFBLZbQuTkb" style="border-bottom: Black 2.5pt double; text-align: right" title="Revenue">375</td><td style="padding-bottom: 2.5pt; text-align: left"> </td></tr>
<tr style="vertical-align: bottom; background-color: rgb(238,238,238)">
<td> </td><td> </td>
<td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td><td> </td>
<td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td></tr>
<tr style="vertical-align: bottom; background-color: White">
<td style="text-align: left">Timing of revenue recognition</td><td> </td>
<td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td><td> </td>
<td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td></tr>
<tr style="vertical-align: bottom; background-color: rgb(238,238,238)">
<td style="padding-left: 10pt; text-align: left">Products and services transferred at a point in time</td><td> </td>
<td style="text-align: left">$</td><td id="xdx_980_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_pn3n3_d0_c20230101__20230331__us-gaap--TimingOfTransferOfGoodOrServiceAxis__us-gaap--TransferredAtPointInTimeMember_zbE1tOaAoE31" style="text-align: right" title="Revenue">–</td><td style="text-align: left"> </td><td> </td>
<td style="text-align: left">$</td><td id="xdx_981_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_c20220101__20220331__us-gaap--TimingOfTransferOfGoodOrServiceAxis__us-gaap--TransferredAtPointInTimeMember_pn3n3" style="text-align: right" title="Revenue">375</td><td style="text-align: left"> </td></tr>
<tr style="vertical-align: bottom; background-color: White">
<td style="padding-left: 10pt; text-align: left; padding-bottom: 1pt">Products and services transferred over time</td><td style="padding-bottom: 1pt"> </td>
<td style="border-bottom: Black 1pt solid; text-align: left"> </td><td id="xdx_982_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_pn3n3_d0_c20230101__20230331__us-gaap--TimingOfTransferOfGoodOrServiceAxis__us-gaap--TransferredOverTimeMember_zDLXHxzZdpl3" style="border-bottom: Black 1pt solid; text-align: right" title="Revenue">–</td><td style="padding-bottom: 1pt; text-align: left"> </td><td style="padding-bottom: 1pt"> </td>
<td style="border-bottom: Black 1pt solid; text-align: left"> </td><td id="xdx_98B_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_pn3n3_d0_c20220101__20220331__us-gaap--TimingOfTransferOfGoodOrServiceAxis__us-gaap--TransferredOverTimeMember_z9k7n4OlHBG" style="border-bottom: Black 1pt solid; text-align: right" title="Revenue">–</td><td style="padding-bottom: 1pt; text-align: left"> </td></tr>
<tr style="vertical-align: bottom; background-color: rgb(238,238,238)">
<td style="padding-left: 20pt; padding-bottom: 2.5pt">Total</td><td style="padding-bottom: 2.5pt"> </td>
<td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td id="xdx_982_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_pn3n3_d0_c20230101__20230331_zPiisdW3ILc2" style="border-bottom: Black 2.5pt double; text-align: right" title="Revenue">–</td><td style="padding-bottom: 2.5pt; text-align: left"> </td><td style="padding-bottom: 2.5pt"> </td>
<td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td id="xdx_986_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_pn3n3_c20220101__20220331_zqwwcRe85n98" style="border-bottom: Black 2.5pt double; text-align: right" title="Revenue">375</td><td style="padding-bottom: 2.5pt; text-align: left"> </td></tr>
</table>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><b><i> </i></b></p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><i>Unbilled contracts receivable and deferred revenue</i></p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"> </p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in">Timing of revenue recognition
may differ from the timing of invoicing customers. Accounts receivable includes amounts billed and currently due from customers. Unbilled
contracts receivable represents unbilled amounts expected to be received from customers in future periods, where the revenue recognized
to date exceeds the amount billed, and the right to receive payment is subject to the underlying contractual terms. Unbilled contracts
receivable amounts may not exceed their net realizable value and are classified as long-term assets if the payments are expected to be
received more than one year from the reporting date.</p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"> </p>
<table cellpadding="0" cellspacing="0" id="xdx_88B_eus-gaap--DisaggregationOfRevenueTableTextBlock_pn3n3_zuv2R6Jdc1zf" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%" summary="xdx: Disclosure - REVENUE (Details)">
<tr style="vertical-align: bottom">
<td><span id="xdx_8BB_zqfTTbdtVH94" style="display: none">Schedule of disaggregated revenue and timing of revenue</span> </td><td> </td>
<td colspan="2" style="text-align: right"> </td><td> </td><td> </td>
<td colspan="2" style="text-align: right"> </td><td> </td></tr>
<tr style="vertical-align: bottom">
<td> </td><td style="font-weight: bold; padding-bottom: 1pt"> </td>
<td colspan="6" style="border-bottom: Black 1pt solid; font-weight: bold; text-align: center">Three Months Ended <br/>
March 31,</td><td style="padding-bottom: 1pt; font-weight: bold"> </td></tr>
<tr style="vertical-align: bottom">
<td> </td><td style="font-weight: bold; padding-bottom: 1pt"> </td>
<td colspan="2" style="border-bottom: Black 1pt solid; font-weight: bold; text-align: center">2023</td><td style="padding-bottom: 1pt; font-weight: bold"> </td><td style="font-weight: bold; padding-bottom: 1pt"> </td>
<td colspan="2" style="border-bottom: Black 1pt solid; font-weight: bold; text-align: center">2022</td><td style="padding-bottom: 1pt; font-weight: bold"> </td></tr>
<tr style="vertical-align: bottom; background-color: rgb(238,238,238)">
<td style="text-align: left">Primary geographic markets</td><td> </td>
<td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td><td> </td>
<td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td></tr>
<tr style="vertical-align: bottom; background-color: White">
<td style="padding-left: 10pt; width: 66%; text-align: left">North America</td><td style="width: 2%"> </td>
<td style="width: 1%; text-align: left">$</td><td id="xdx_98E_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_pn3n3_d0_c20230101__20230331__srt--StatementGeographicalAxis__srt--NorthAmericaMember_zTbj03blc5Vf" style="width: 13%; text-align: right" title="Revenue">–</td><td style="width: 1%; text-align: left"> </td><td style="width: 2%"> </td>
<td style="width: 1%; text-align: left">$</td><td id="xdx_988_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_c20220101__20220331__srt--StatementGeographicalAxis__srt--NorthAmericaMember_pn3n3" style="width: 13%; text-align: right" title="Revenue">75</td><td style="width: 1%; text-align: left"> </td></tr>
<tr style="vertical-align: bottom; background-color: rgb(238,238,238)">
<td style="padding-left: 10pt; text-align: left; padding-bottom: 1pt">Asia Pacific</td><td style="padding-bottom: 1pt"> </td>
<td style="border-bottom: Black 1pt solid; text-align: left"> </td><td id="xdx_98C_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_pn3n3_d0_c20230101__20230331__srt--StatementGeographicalAxis__srt--AsiaPacificMember_zJLyFiAewAg7" style="border-bottom: Black 1pt solid; text-align: right" title="Revenue">–</td><td style="padding-bottom: 1pt; text-align: left"> </td><td style="padding-bottom: 1pt"> </td>
<td style="border-bottom: Black 1pt solid; text-align: left"> </td><td id="xdx_987_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_c20220101__20220331__srt--StatementGeographicalAxis__srt--AsiaPacificMember_pn3n3" style="border-bottom: Black 1pt solid; text-align: right" title="Revenue">300</td><td style="padding-bottom: 1pt; text-align: left"> </td></tr>
<tr style="vertical-align: bottom; background-color: White">
<td style="padding-left: 20pt; padding-bottom: 2.5pt">Total</td><td style="padding-bottom: 2.5pt"> </td>
<td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td id="xdx_982_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_pn3n3_d0_c20230101__20230331_zFGgyigEMUda" style="border-bottom: Black 2.5pt double; text-align: right" title="Revenue">–</td><td style="padding-bottom: 2.5pt; text-align: left"> </td><td style="padding-bottom: 2.5pt"> </td>
<td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td id="xdx_98E_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_pn3n3_c20220101__20220331_zVFBLZbQuTkb" style="border-bottom: Black 2.5pt double; text-align: right" title="Revenue">375</td><td style="padding-bottom: 2.5pt; text-align: left"> </td></tr>
<tr style="vertical-align: bottom; background-color: rgb(238,238,238)">
<td> </td><td> </td>
<td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td><td> </td>
<td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td></tr>
<tr style="vertical-align: bottom; background-color: White">
<td style="text-align: left">Timing of revenue recognition</td><td> </td>
<td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td><td> </td>
<td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td></tr>
<tr style="vertical-align: bottom; background-color: rgb(238,238,238)">
<td style="padding-left: 10pt; text-align: left">Products and services transferred at a point in time</td><td> </td>
<td style="text-align: left">$</td><td id="xdx_980_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_pn3n3_d0_c20230101__20230331__us-gaap--TimingOfTransferOfGoodOrServiceAxis__us-gaap--TransferredAtPointInTimeMember_zbE1tOaAoE31" style="text-align: right" title="Revenue">–</td><td style="text-align: left"> </td><td> </td>
<td style="text-align: left">$</td><td id="xdx_981_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_c20220101__20220331__us-gaap--TimingOfTransferOfGoodOrServiceAxis__us-gaap--TransferredAtPointInTimeMember_pn3n3" style="text-align: right" title="Revenue">375</td><td style="text-align: left"> </td></tr>
<tr style="vertical-align: bottom; background-color: White">
<td style="padding-left: 10pt; text-align: left; padding-bottom: 1pt">Products and services transferred over time</td><td style="padding-bottom: 1pt"> </td>
<td style="border-bottom: Black 1pt solid; text-align: left"> </td><td id="xdx_982_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_pn3n3_d0_c20230101__20230331__us-gaap--TimingOfTransferOfGoodOrServiceAxis__us-gaap--TransferredOverTimeMember_zDLXHxzZdpl3" style="border-bottom: Black 1pt solid; text-align: right" title="Revenue">–</td><td style="padding-bottom: 1pt; text-align: left"> </td><td style="padding-bottom: 1pt"> </td>
<td style="border-bottom: Black 1pt solid; text-align: left"> </td><td id="xdx_98B_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_pn3n3_d0_c20220101__20220331__us-gaap--TimingOfTransferOfGoodOrServiceAxis__us-gaap--TransferredOverTimeMember_z9k7n4OlHBG" style="border-bottom: Black 1pt solid; text-align: right" title="Revenue">–</td><td style="padding-bottom: 1pt; text-align: left"> </td></tr>
<tr style="vertical-align: bottom; background-color: rgb(238,238,238)">
<td style="padding-left: 20pt; padding-bottom: 2.5pt">Total</td><td style="padding-bottom: 2.5pt"> </td>
<td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td id="xdx_982_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_pn3n3_d0_c20230101__20230331_zPiisdW3ILc2" style="border-bottom: Black 2.5pt double; text-align: right" title="Revenue">–</td><td style="padding-bottom: 2.5pt; text-align: left"> </td><td style="padding-bottom: 2.5pt"> </td>
<td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td id="xdx_986_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_pn3n3_c20220101__20220331_zqwwcRe85n98" style="border-bottom: Black 2.5pt double; text-align: right" title="Revenue">375</td><td style="padding-bottom: 2.5pt; text-align: left"> </td></tr>
</table>
0
75000
0
300000
0
375000
0
375000
0
0
0
375000
<p id="xdx_807_eus-gaap--EarningsPerShareTextBlock_zPiuE2vlpmzh" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"> </p>
<table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<tr style="vertical-align: top">
<td style="width: 48px"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>6.</b></span></td>
<td><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b><span id="xdx_821_z8tuDpefKIMk">BASIC AND DILUTED LOSS PER SHARE</span></b></span></td></tr>
</table>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"> </p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in">Basic net loss per share is
calculated by dividing the net loss by the weighted-average number of shares outstanding for the period. Diluted net loss per share is
computed by dividing the net loss attributable to common stockholders by the sum of the weighted average number of shares of common stock
outstanding and the dilutive common stock equivalent shares outstanding during the period. The Company’s potentially dilutive common
stock equivalent shares, which include incremental common shares issuable upon (i) the exercise of outstanding stock options and warrants
and (ii) vesting of restricted stock units and restricted stock awards, are only included in the calculation of diluted net loss per share
when their effect is dilutive. Since the Company has had net losses for all periods presented, all potentially dilutive securities are
anti-dilutive. Accordingly, basic and diluted net loss per share are equal.</p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"> </p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in">The following potential common
stock equivalents were not included in the calculation of diluted net loss per common share because the inclusion thereof would be anti-dilutive
(in thousands): </p>
<table cellpadding="0" cellspacing="0" id="xdx_885_eus-gaap--ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTextBlock_pn3n3_zIPpV4pdqQe1" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%" summary="xdx: Disclosure - BASIC AND DILUTED LOSS PER SHARE (Details)">
<tr style="vertical-align: bottom">
<td><span id="xdx_8BB_zfBrVEOOKL9e" style="display: none">Schedule of anti dilutive shares</span> </td><td> </td>
<td colspan="2" style="text-align: right"> </td><td> </td><td> </td>
<td colspan="2" style="text-align: right"> </td><td> </td></tr>
<tr style="vertical-align: bottom">
<td> </td><td style="padding-bottom: 1pt"> </td>
<td colspan="6" style="border-bottom: Black 1pt solid; text-align: center"><p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><b>Three Months Ended </b></p> <p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><b>March 31,</b></p></td><td style="padding-bottom: 1pt"> </td></tr>
<tr style="vertical-align: bottom">
<td> </td><td style="font-weight: bold; padding-bottom: 1pt"> </td>
<td colspan="2" style="border-bottom: Black 1pt solid; font-weight: bold; text-align: center">2023</td><td style="padding-bottom: 1pt; font-weight: bold"> </td><td style="font-weight: bold; padding-bottom: 1pt"> </td>
<td colspan="2" style="border-bottom: Black 1pt solid; font-weight: bold; text-align: center">2022</td><td style="padding-bottom: 1pt; font-weight: bold"> </td></tr>
<tr style="vertical-align: bottom; background-color: rgb(238,238,238)">
<td style="width: 66%; text-align: left">Stock Options</td><td style="width: 2%"> </td>
<td style="width: 1%; text-align: left"> </td><td id="xdx_98A_eus-gaap--AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount_pn3n3_c20230101__20230331__us-gaap--AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis__us-gaap--EmployeeStockOptionMember_zxE8LXZWj891" style="width: 13%; text-align: right" title="Potential common stock equivalents">3,374</td><td style="width: 1%; text-align: left"> </td><td style="width: 2%"> </td>
<td style="width: 1%; text-align: left"> </td><td id="xdx_980_eus-gaap--AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount_pn3n3_c20220101__20220331__us-gaap--AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis__us-gaap--EmployeeStockOptionMember_zBbpTDeVaCS" style="width: 13%; text-align: right" title="Potential common stock equivalents">3,008</td><td style="width: 1%; text-align: left"> </td></tr>
<tr style="vertical-align: bottom; background-color: White">
<td style="text-align: left">Unvested restricted stock</td><td> </td>
<td style="text-align: left"> </td><td id="xdx_988_eus-gaap--AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount_pn3n3_c20230101__20230331__us-gaap--AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis__custom--UnvestedRestrictedStockMember_z8pdMzyrVhhk" style="text-align: right" title="Potential common stock equivalents">582</td><td style="text-align: left"> </td><td> </td>
<td style="text-align: left"> </td><td id="xdx_989_eus-gaap--AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount_pn3n3_c20220101__20220331__us-gaap--AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis__custom--UnvestedRestrictedStockMember_zULvmAk6WFn3" style="text-align: right" title="Potential common stock equivalents">493</td><td style="text-align: left"> </td></tr>
<tr style="vertical-align: bottom; background-color: rgb(238,238,238)">
<td style="padding-bottom: 1pt">Warrants</td><td style="padding-bottom: 1pt"> </td>
<td style="border-bottom: Black 1pt solid; text-align: left"> </td><td id="xdx_98A_eus-gaap--AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount_pn3n3_d0_c20230101__20230331__us-gaap--AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis__us-gaap--WarrantMember_zEhe6aoKqGm" style="border-bottom: Black 1pt solid; text-align: right" title="Potential common stock equivalents">–</td><td style="padding-bottom: 1pt; text-align: left"> </td><td style="padding-bottom: 1pt"> </td>
<td style="border-bottom: Black 1pt solid; text-align: left"> </td><td id="xdx_988_eus-gaap--AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount_pn3n3_c20220101__20220331__us-gaap--AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis__us-gaap--WarrantMember_zMhKaZYfzJbd" style="border-bottom: Black 1pt solid; text-align: right" title="Potential common stock equivalents">1</td><td style="padding-bottom: 1pt; text-align: left"> </td></tr>
<tr style="vertical-align: bottom; background-color: White">
<td style="padding-left: 10pt; padding-bottom: 2.5pt">Total</td><td style="padding-bottom: 2.5pt"> </td>
<td style="border-bottom: Black 2.5pt double; text-align: left"> </td><td id="xdx_988_eus-gaap--AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount_pn3n3_c20230101__20230331_zbvQbYZNRF85" style="border-bottom: Black 2.5pt double; text-align: right" title="Potential common stock equivalents">3,956</td><td style="padding-bottom: 2.5pt; text-align: left"> </td><td style="padding-bottom: 2.5pt"> </td>
<td style="border-bottom: Black 2.5pt double; text-align: left"> </td><td id="xdx_984_eus-gaap--AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount_pn3n3_c20220101__20220331_zUHrwPwtaTYk" style="border-bottom: Black 2.5pt double; text-align: right" title="Potential common stock equivalents">3,502</td><td style="padding-bottom: 2.5pt; text-align: left"> </td></tr>
</table>
<table cellpadding="0" cellspacing="0" id="xdx_885_eus-gaap--ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTextBlock_pn3n3_zIPpV4pdqQe1" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%" summary="xdx: Disclosure - BASIC AND DILUTED LOSS PER SHARE (Details)">
<tr style="vertical-align: bottom">
<td><span id="xdx_8BB_zfBrVEOOKL9e" style="display: none">Schedule of anti dilutive shares</span> </td><td> </td>
<td colspan="2" style="text-align: right"> </td><td> </td><td> </td>
<td colspan="2" style="text-align: right"> </td><td> </td></tr>
<tr style="vertical-align: bottom">
<td> </td><td style="padding-bottom: 1pt"> </td>
<td colspan="6" style="border-bottom: Black 1pt solid; text-align: center"><p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><b>Three Months Ended </b></p> <p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><b>March 31,</b></p></td><td style="padding-bottom: 1pt"> </td></tr>
<tr style="vertical-align: bottom">
<td> </td><td style="font-weight: bold; padding-bottom: 1pt"> </td>
<td colspan="2" style="border-bottom: Black 1pt solid; font-weight: bold; text-align: center">2023</td><td style="padding-bottom: 1pt; font-weight: bold"> </td><td style="font-weight: bold; padding-bottom: 1pt"> </td>
<td colspan="2" style="border-bottom: Black 1pt solid; font-weight: bold; text-align: center">2022</td><td style="padding-bottom: 1pt; font-weight: bold"> </td></tr>
<tr style="vertical-align: bottom; background-color: rgb(238,238,238)">
<td style="width: 66%; text-align: left">Stock Options</td><td style="width: 2%"> </td>
<td style="width: 1%; text-align: left"> </td><td id="xdx_98A_eus-gaap--AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount_pn3n3_c20230101__20230331__us-gaap--AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis__us-gaap--EmployeeStockOptionMember_zxE8LXZWj891" style="width: 13%; text-align: right" title="Potential common stock equivalents">3,374</td><td style="width: 1%; text-align: left"> </td><td style="width: 2%"> </td>
<td style="width: 1%; text-align: left"> </td><td id="xdx_980_eus-gaap--AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount_pn3n3_c20220101__20220331__us-gaap--AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis__us-gaap--EmployeeStockOptionMember_zBbpTDeVaCS" style="width: 13%; text-align: right" title="Potential common stock equivalents">3,008</td><td style="width: 1%; text-align: left"> </td></tr>
<tr style="vertical-align: bottom; background-color: White">
<td style="text-align: left">Unvested restricted stock</td><td> </td>
<td style="text-align: left"> </td><td id="xdx_988_eus-gaap--AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount_pn3n3_c20230101__20230331__us-gaap--AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis__custom--UnvestedRestrictedStockMember_z8pdMzyrVhhk" style="text-align: right" title="Potential common stock equivalents">582</td><td style="text-align: left"> </td><td> </td>
<td style="text-align: left"> </td><td id="xdx_989_eus-gaap--AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount_pn3n3_c20220101__20220331__us-gaap--AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis__custom--UnvestedRestrictedStockMember_zULvmAk6WFn3" style="text-align: right" title="Potential common stock equivalents">493</td><td style="text-align: left"> </td></tr>
<tr style="vertical-align: bottom; background-color: rgb(238,238,238)">
<td style="padding-bottom: 1pt">Warrants</td><td style="padding-bottom: 1pt"> </td>
<td style="border-bottom: Black 1pt solid; text-align: left"> </td><td id="xdx_98A_eus-gaap--AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount_pn3n3_d0_c20230101__20230331__us-gaap--AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis__us-gaap--WarrantMember_zEhe6aoKqGm" style="border-bottom: Black 1pt solid; text-align: right" title="Potential common stock equivalents">–</td><td style="padding-bottom: 1pt; text-align: left"> </td><td style="padding-bottom: 1pt"> </td>
<td style="border-bottom: Black 1pt solid; text-align: left"> </td><td id="xdx_988_eus-gaap--AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount_pn3n3_c20220101__20220331__us-gaap--AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis__us-gaap--WarrantMember_zMhKaZYfzJbd" style="border-bottom: Black 1pt solid; text-align: right" title="Potential common stock equivalents">1</td><td style="padding-bottom: 1pt; text-align: left"> </td></tr>
<tr style="vertical-align: bottom; background-color: White">
<td style="padding-left: 10pt; padding-bottom: 2.5pt">Total</td><td style="padding-bottom: 2.5pt"> </td>
<td style="border-bottom: Black 2.5pt double; text-align: left"> </td><td id="xdx_988_eus-gaap--AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount_pn3n3_c20230101__20230331_zbvQbYZNRF85" style="border-bottom: Black 2.5pt double; text-align: right" title="Potential common stock equivalents">3,956</td><td style="padding-bottom: 2.5pt; text-align: left"> </td><td style="padding-bottom: 2.5pt"> </td>
<td style="border-bottom: Black 2.5pt double; text-align: left"> </td><td id="xdx_984_eus-gaap--AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount_pn3n3_c20220101__20220331_zUHrwPwtaTYk" style="border-bottom: Black 2.5pt double; text-align: right" title="Potential common stock equivalents">3,502</td><td style="padding-bottom: 2.5pt; text-align: left"> </td></tr>
</table>
3374000
3008000
582000
493000
0
1000
3956000
3502000
<p id="xdx_80D_eus-gaap--LesseeOperatingLeasesTextBlock_z2xYCYs6cvp" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"> </p>
<table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<tr style="vertical-align: top">
<td style="width: 48px"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>7.</b></span></td>
<td style="text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b><span id="xdx_82A_znbVIbjMJn26">LEASES</span></b></span></td></tr>
</table>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in"> </p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in">The Company accounts for leases
over one year under ASC 842. Lease expense for the Company’s operating leases consists of the lease payments recognized on a straight-line
basis over the lease term. Expenses for the Company’s financing leases consists of the amortization expenses recognized on a straight-line
basis over the lease term, variable lease costs and interest expense. The Company’s lease agreement for a tool used in the development
and marketing of the Company’s technology contains a provision for an annual adjustment of lease payments based on tool availability
and usage. The potential lease payment adjustment is determined on August 1 of each year of the lease and is calculated based on the tool
availability and usage for the preceding 12 months. Effective August 1, 2022, the lease payments for this tool were reduced to $100,824
per month for the period August 1, 2022 through July 31, 2023. This adjustment to the variable lease payments resulted in a reduction
in ROU and corresponding lease liability. The components of lease costs were as follows (in thousands): </p>
<table cellpadding="0" cellspacing="0" id="xdx_89C_eus-gaap--LeaseCostTableTextBlock_pn3n3_zGMBf31XrpP6" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%" summary="xdx: Disclosure - LEASES (Details - Lease costs)">
<tr style="vertical-align: bottom">
<td><span id="xdx_8B8_z67dpVqt968h" style="display: none">Components of lease costs</span> </td><td> </td>
<td colspan="2" id="xdx_496_20230101__20230331_zZfC8f6Fpcdl" style="text-align: center"> </td><td> </td><td> </td>
<td colspan="2" id="xdx_49D_20220101__20220331_zhDMyETPYYWd" style="text-align: center"> </td><td> </td></tr>
<tr style="vertical-align: bottom">
<td> </td><td style="padding-bottom: 1pt"> </td>
<td colspan="6" style="border-bottom: Black 1pt solid; text-align: center"><p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><b>Three Months Ended </b></p> <p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><b>March 31,</b></p></td><td style="padding-bottom: 1pt"> </td></tr>
<tr style="vertical-align: bottom">
<td> </td><td style="font-weight: bold; padding-bottom: 1pt"> </td>
<td colspan="2" style="border-bottom: Black 1pt solid; font-weight: bold; text-align: center">2023</td><td style="padding-bottom: 1pt; font-weight: bold"> </td><td style="font-weight: bold; padding-bottom: 1pt"> </td>
<td colspan="2" style="border-bottom: Black 1pt solid; font-weight: bold; text-align: center">2022</td><td style="padding-bottom: 1pt; font-weight: bold"> </td></tr>
<tr id="xdx_40E_eus-gaap--LeaseCostAbstract_iB" style="vertical-align: bottom; background-color: rgb(238,238,238)">
<td style="text-align: left">Financing lease costs:</td><td> </td>
<td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td><td> </td>
<td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td></tr>
<tr id="xdx_40D_eus-gaap--FinanceLeaseRightOfUseAssetAmortization_maLCzSfC_z1FlH66W77yc" style="vertical-align: bottom; background-color: White">
<td style="width: 66%; text-align: left; padding-left: 10pt">Amortization of ROU assets</td><td style="width: 2%"> </td>
<td style="width: 1%; text-align: left">$</td><td style="width: 13%; text-align: right">291</td><td style="width: 1%; text-align: left"> </td><td style="width: 2%"> </td>
<td style="width: 1%; text-align: left">$</td><td style="width: 13%; text-align: right">319</td><td style="width: 1%; text-align: left"> </td></tr>
<tr id="xdx_403_eus-gaap--FinanceLeaseInterestExpense_maLCzSfC_zhc5khWlGyn5" style="vertical-align: bottom; background-color: rgb(238,238,238)">
<td style="text-align: left; padding-bottom: 1pt; padding-left: 10pt">Interest on lease liabilities</td><td style="padding-bottom: 1pt"> </td>
<td style="border-bottom: Black 1pt solid; text-align: left"> </td><td style="border-bottom: Black 1pt solid; text-align: right">53</td><td style="padding-bottom: 1pt; text-align: left"> </td><td style="padding-bottom: 1pt"> </td>
<td style="border-bottom: Black 1pt solid; text-align: left"> </td><td style="border-bottom: Black 1pt solid; text-align: right">71</td><td style="padding-bottom: 1pt; text-align: left"> </td></tr>
<tr id="xdx_40D_eus-gaap--LeaseCost_iT_pn3n3_mtLCzSfC_zUOsUTpO7Nk7" style="vertical-align: bottom; background-color: White">
<td style="text-align: left; padding-bottom: 2.5pt">Total financing lease costs</td><td style="padding-bottom: 2.5pt"> </td>
<td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td style="border-bottom: Black 2.5pt double; text-align: right">344</td><td style="padding-bottom: 2.5pt; text-align: left"> </td><td style="padding-bottom: 2.5pt"> </td>
<td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td style="border-bottom: Black 2.5pt double; text-align: right">390</td><td style="padding-bottom: 2.5pt; text-align: left"> </td></tr>
<tr style="vertical-align: bottom; background-color: rgb(238,238,238)">
<td> </td><td> </td>
<td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td><td> </td>
<td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td></tr>
<tr id="xdx_403_ecustom--OperatingLeaseCostAbstract_iB" style="vertical-align: bottom; background-color: White">
<td style="text-align: left">Operating lease costs:</td><td> </td>
<td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td><td> </td>
<td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td></tr>
<tr id="xdx_40A_ecustom--FixedLeaseCosts_maOLCznPz_z9WHhdNdBlD9" style="vertical-align: bottom; background-color: rgb(238,238,238)">
<td style="text-align: left; padding-left: 10pt">Fixed lease costs</td><td> </td>
<td style="text-align: left">$</td><td style="text-align: right">62</td><td style="text-align: left"> </td><td> </td>
<td style="text-align: left">$</td><td style="text-align: right">62</td><td style="text-align: left"> </td></tr>
<tr id="xdx_408_eus-gaap--ShortTermLeaseCost_maOLCznPz_zSlzX84Xb495" style="vertical-align: bottom; background-color: White">
<td style="text-align: left; padding-bottom: 1pt; padding-left: 10pt">Short-term lease costs</td><td style="padding-bottom: 1pt"> </td>
<td style="border-bottom: Black 1pt solid; text-align: left"> </td><td style="border-bottom: Black 1pt solid; text-align: right">297</td><td style="padding-bottom: 1pt; text-align: left"> </td><td style="padding-bottom: 1pt"> </td>
<td style="border-bottom: Black 1pt solid; text-align: left"> </td><td style="border-bottom: Black 1pt solid; text-align: right">11</td><td style="padding-bottom: 1pt; text-align: left"> </td></tr>
<tr id="xdx_40F_eus-gaap--OperatingLeaseCost_iT_pn3n3_mtOLCznPz_zlNkv4P80pBk" style="vertical-align: bottom; background-color: rgb(238,238,238)">
<td style="text-align: left; padding-bottom: 2.5pt">Total operating lease costs</td><td style="padding-bottom: 2.5pt"> </td>
<td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td style="border-bottom: Black 2.5pt double; text-align: right">359</td><td style="padding-bottom: 2.5pt; text-align: left"> </td><td style="padding-bottom: 2.5pt"> </td>
<td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td style="border-bottom: Black 2.5pt double; text-align: right">73</td><td style="padding-bottom: 2.5pt; text-align: left"> </td></tr>
</table>
<p id="xdx_8A3_zn0PYVhMUJl5" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"> </p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">Future minimum payments under non-cancellable leases
as of March 31, 2023 were as follows (in thousands): </p>
<table cellpadding="0" cellspacing="0" id="xdx_89A_eus-gaap--LesseeOperatingLeaseLiabilityMaturityTableTextBlock_pn3n3_zh7ZxVd6ULJl" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%" summary="xdx: Disclosure - LEASES (Details - Minimum lease payments)">
<tr style="vertical-align: bottom">
<td><span id="xdx_8BF_zz56d30VQN83" style="display: none">Schedule of future minimum lease payments</span> </td><td> </td><td> </td>
<td colspan="2" style="text-align: right"> </td><td> </td><td> </td>
<td colspan="2" style="text-align: right"> </td><td> </td></tr>
<tr style="vertical-align: bottom">
<td style="border-bottom: Black 1pt solid; font-weight: bold">For the Year Ended December 31,</td><td style="padding-bottom: 1pt; font-weight: bold"> </td><td style="font-weight: bold; padding-bottom: 1pt"> </td>
<td colspan="2" style="border-bottom: Black 1pt solid; font-weight: bold; text-align: center">Financing leases</td><td style="padding-bottom: 1pt; font-weight: bold"> </td><td style="font-weight: bold; padding-bottom: 1pt"> </td>
<td colspan="2" style="border-bottom: Black 1pt solid; font-weight: bold; text-align: center">Operating leases</td><td style="padding-bottom: 1pt; font-weight: bold"> </td></tr>
<tr style="vertical-align: bottom; background-color: rgb(238,238,238)">
<td style="width: 60%; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Remaining 2023</span></td><td style="width: 1%; text-align: left"> </td><td style="width: 2%"> </td>
<td style="width: 1%; text-align: left">$</td><td id="xdx_989_eus-gaap--FinanceLeaseLiabilityPaymentsDueNextTwelveMonths_iI_pn3n3_c20230331__us-gaap--LongtermDebtTypeAxis__custom--FinancingLeasesMember_zE2KGzEAVNX8" style="width: 13%; text-align: right" title="Remaining 2023">839</td><td style="width: 1%; text-align: left"> </td><td style="width: 2%"> </td>
<td style="width: 1%; text-align: left">$</td><td id="xdx_984_eus-gaap--LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths_iI_pn3n3_c20230331__us-gaap--PropertySubjectToOrAvailableForOperatingLeaseAxis__custom--OperatingLeasesMember_zaMOTptrL9va" style="width: 13%; text-align: right" title="Remaining 2023">198</td><td style="width: 1%; text-align: left"> </td></tr>
<tr style="vertical-align: bottom; background-color: White">
<td style="text-align: left">2024</td><td style="text-align: left"> </td><td> </td>
<td style="text-align: left"> </td><td id="xdx_98F_eus-gaap--FinanceLeaseLiabilityPaymentsDueYearTwo_iI_pn3n3_c20230331__us-gaap--LongtermDebtTypeAxis__custom--FinancingLeasesMember_zxJBI3LMaujj" style="text-align: right" title="2024">1,436</td><td style="text-align: left"> </td><td> </td>
<td style="text-align: left"> </td><td id="xdx_986_eus-gaap--LesseeOperatingLeaseLiabilityPaymentsDueYearTwo_iI_pn3n3_c20230331__us-gaap--PropertySubjectToOrAvailableForOperatingLeaseAxis__custom--OperatingLeasesMember_zNPjN5CI2VB9" style="text-align: right" title="2024">278</td><td style="text-align: left"> </td></tr>
<tr style="vertical-align: bottom; background-color: rgb(238,238,238)">
<td style="text-align: left">2025</td><td style="text-align: left"> </td><td> </td>
<td style="text-align: left"> </td><td id="xdx_983_eus-gaap--FinanceLeaseLiabilityPaymentsDueYearThree_iI_pn3n3_c20230331__us-gaap--LongtermDebtTypeAxis__custom--FinancingLeasesMember_zoMy9EyqDS6j" style="text-align: right" title="2025">1,436</td><td style="text-align: left"> </td><td> </td>
<td style="text-align: left"> </td><td id="xdx_985_eus-gaap--LesseeOperatingLeaseLiabilityPaymentsDueYearThree_iI_pn3n3_c20230331__us-gaap--PropertySubjectToOrAvailableForOperatingLeaseAxis__custom--OperatingLeasesMember_zzyZor9xvDkl" style="text-align: right" title="2025">284</td><td style="text-align: left"> </td></tr>
<tr style="vertical-align: bottom; background-color: White">
<td style="text-align: left">2026</td><td style="text-align: left"> </td><td> </td>
<td style="text-align: left"> </td><td id="xdx_98B_eus-gaap--FinanceLeaseLiabilityPaymentsDueYearFour_iI_pn3n3_c20230331__us-gaap--LongtermDebtTypeAxis__custom--FinancingLeasesMember_zvaxcGsULjOb" style="text-align: right" title="2026">478</td><td style="text-align: left"> </td><td> </td>
<td style="text-align: left"> </td><td id="xdx_98E_eus-gaap--LesseeOperatingLeaseLiabilityPaymentsDueYearFour_iI_pn3n3_c20230331__us-gaap--PropertySubjectToOrAvailableForOperatingLeaseAxis__custom--OperatingLeasesMember_zyKoUPGaTkJi" style="text-align: right" title="2026">21</td><td style="text-align: left"> </td></tr>
<tr style="vertical-align: bottom; background-color: rgb(238,238,238)">
<td style="padding-bottom: 1pt; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">2027 & thereafter</span></td><td style="padding-bottom: 1pt; text-align: left"> </td><td style="padding-bottom: 1pt"> </td>
<td style="border-bottom: Black 1pt solid; text-align: left"> </td><td id="xdx_989_eus-gaap--FinanceLeaseLiabilityPaymentsDueYearFive_iI_pn3n3_d0_c20230331__us-gaap--LongtermDebtTypeAxis__custom--FinancingLeasesMember_zDsfiBAwxkI6" style="border-bottom: Black 1pt solid; text-align: right" title="2027 & thereafter">–</td><td style="padding-bottom: 1pt; text-align: left"> </td><td style="padding-bottom: 1pt"> </td>
<td style="border-bottom: Black 1pt solid; text-align: left"> </td><td id="xdx_980_eus-gaap--LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive_iI_pn3n3_d0_c20230331__us-gaap--PropertySubjectToOrAvailableForOperatingLeaseAxis__custom--OperatingLeasesMember_zSJR2sALhQre" style="border-bottom: Black 1pt solid; text-align: right" title="2027 & thereafter">–</td><td style="padding-bottom: 1pt; text-align: left"> </td></tr>
<tr style="vertical-align: bottom; background-color: White">
<td style="padding-left: 10pt; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Total future minimum lease payments</span></td><td style="text-align: left"> </td><td> </td>
<td style="text-align: left">$</td><td id="xdx_986_eus-gaap--FinanceLeaseLiabilityPaymentsDue_c20230331__us-gaap--LongtermDebtTypeAxis__custom--FinancingLeasesMember_pn3n3" style="text-align: right" title="Total future minimum lease payments">4,189</td><td style="text-align: left"> </td><td> </td>
<td style="text-align: left">$</td><td id="xdx_98B_eus-gaap--LesseeOperatingLeaseLiabilityPaymentsDue_c20230331__us-gaap--PropertySubjectToOrAvailableForOperatingLeaseAxis__custom--OperatingLeasesMember_pn3n3" style="text-align: right" title="Total future minimum lease payments">781</td><td style="text-align: left"> </td></tr>
<tr style="vertical-align: bottom; background-color: rgb(238,238,238)">
<td style="padding-bottom: 1pt; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Less imputed interest</span></td><td style="padding-bottom: 1pt; text-align: left"> </td><td style="padding-bottom: 1pt"> </td>
<td style="border-bottom: Black 1pt solid; text-align: left"> </td><td id="xdx_98F_eus-gaap--FinanceLeaseLiabilityUndiscountedExcessAmount_iNI_pn3n3_di_c20230331__us-gaap--LongtermDebtTypeAxis__custom--FinancingLeasesMember_ziSzxyMhFXP" style="border-bottom: Black 1pt solid; text-align: right" title="Less imputed interest">(266</td><td style="padding-bottom: 1pt; text-align: left">)</td><td style="padding-bottom: 1pt"> </td>
<td style="border-bottom: Black 1pt solid; text-align: left"> </td><td id="xdx_98F_ecustom--OperatingLeasesFutureMinimumPaymentsInterestIncludedInPayments_c20230331__us-gaap--PropertySubjectToOrAvailableForOperatingLeaseAxis__custom--OperatingLeasesMember_pn3n3" style="border-bottom: Black 1pt solid; text-align: right" title="Less imputed interest">(59</td><td style="padding-bottom: 1pt; text-align: left">)</td></tr>
<tr style="vertical-align: bottom; background-color: White">
<td style="padding-bottom: 2.5pt; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Total lease liability</span></td><td style="padding-bottom: 2.5pt; text-align: left"> </td><td style="padding-bottom: 2.5pt"> </td>
<td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td id="xdx_98D_eus-gaap--FinanceLeaseLiability_c20230331__us-gaap--LongtermDebtTypeAxis__custom--FinancingLeasesMember_pn3n3" style="border-bottom: Black 2.5pt double; text-align: right" title="Total lease liability">3,923</td><td style="padding-bottom: 2.5pt; text-align: left"> </td><td style="padding-bottom: 2.5pt"> </td>
<td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td id="xdx_987_eus-gaap--OperatingLeaseLiability_c20230331__us-gaap--PropertySubjectToOrAvailableForOperatingLeaseAxis__custom--OperatingLeasesMember_pn3n3" style="border-bottom: Black 2.5pt double; text-align: right" title="Total lease liability">722</td><td style="padding-bottom: 2.5pt; text-align: left"> </td></tr>
</table>
<p id="xdx_8A7_zkT4YP44MHZ" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"> </p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in">The table above does not include
our short-term leases that are one-year or less.</p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"> </p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in">The below table provides supplemental
information and non-cash activity related to the Company’s operating and financing leases are as follows (in thousands): </p>
<table cellpadding="0" cellspacing="0" id="xdx_890_eus-gaap--ScheduleOfCashFlowSupplementalDisclosuresTableTextBlock_pn3n3_zST8r6JPDlia" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%" summary="xdx: Disclosure - LEASES (Details - Cash flow effect)">
<tr style="vertical-align: bottom">
<td><span id="xdx_8B5_z9sO7Ft0XEYf" style="display: none">Supplemental non-cash activity related to operating and
financing leases</span> </td><td> </td>
<td colspan="2" id="xdx_493_20230101__20230331_zR9VINA7FEZg" style="text-align: center"> </td><td> </td><td> </td>
<td colspan="2" id="xdx_496_20220101__20220331_zxKNP4UO46o8" style="text-align: center"> </td><td> </td></tr>
<tr style="vertical-align: bottom">
<td> </td><td style="padding-bottom: 1pt"> </td>
<td colspan="6" style="border-bottom: Black 1pt solid; text-align: center"><p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><b>Three Months Ended</b></p> <p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><b>March 31,</b></p></td><td style="padding-bottom: 1pt"> </td></tr>
<tr style="vertical-align: bottom">
<td style="text-align: justify"> </td><td style="font-weight: bold; padding-bottom: 1pt"> </td>
<td colspan="2" style="border-bottom: Black 1pt solid; font-weight: bold; text-align: center">2023</td><td style="padding-bottom: 1pt; font-weight: bold"> </td><td style="font-weight: bold; padding-bottom: 1pt"> </td>
<td colspan="2" style="border-bottom: Black 1pt solid; font-weight: bold; text-align: center">2022</td><td style="padding-bottom: 1pt; font-weight: bold"> </td></tr>
<tr id="xdx_407_eus-gaap--SupplementalCashFlowElementsAbstract_iB" style="vertical-align: bottom; background-color: rgb(238,238,238)">
<td style="font-weight: bold; text-align: justify">Operating cash flow information:</td><td> </td>
<td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td><td> </td>
<td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td></tr>
<tr id="xdx_40B_eus-gaap--OperatingLeasePayments_i01_pn3n3" style="vertical-align: bottom; background-color: White">
<td style="padding-left: 10pt; width: 66%; text-align: left">Cash paid for amounts included in the measurement of operating lease liabilities</td><td style="width: 2%"> </td>
<td style="width: 1%; text-align: left">$</td><td style="width: 13%; text-align: right">56</td><td style="width: 1%; text-align: left"> </td><td style="width: 2%"> </td>
<td style="width: 1%; text-align: left">$</td><td style="width: 13%; text-align: right">54</td><td style="width: 1%; text-align: left"> </td></tr>
<tr id="xdx_40A_eus-gaap--FinanceLeasePrincipalPayments_i01_pn3n3" style="vertical-align: bottom; background-color: rgb(238,238,238)">
<td style="padding-left: 10pt; text-align: left">Cash paid for amounts included in the measurement of financing liabilities</td><td> </td>
<td style="text-align: left">$</td><td style="text-align: right">241</td><td style="text-align: left"> </td><td> </td>
<td style="text-align: left">$</td><td style="text-align: right">359</td><td style="text-align: left"> </td></tr>
<tr id="xdx_408_eus-gaap--NoncashInvestingAndFinancingItemsAbstract_iB" style="vertical-align: bottom; background-color: White">
<td style="font-weight: bold; text-align: justify">Non-cash activity:</td><td> </td>
<td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td><td> </td>
<td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td></tr>
<tr id="xdx_401_eus-gaap--RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability_i01_pn3n3_d0_zTW8H5vu5GQk" style="vertical-align: bottom; background-color: rgb(238,238,238)">
<td style="padding-left: 10pt; text-align: left">Right-of-use assets obtained in exchange for operating lease obligations</td><td> </td>
<td style="text-align: left">$</td><td style="text-align: right">–</td><td style="text-align: left"> </td><td> </td>
<td style="text-align: left">$</td><td style="text-align: right">–</td><td style="text-align: left"> </td></tr>
<tr id="xdx_404_eus-gaap--RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability_i01_pn3n3_d0_z5jLp1OWjw9j" style="vertical-align: bottom; background-color: White">
<td style="padding-left: 10pt; text-align: left">Right-of-use assets obtained in exchange for financing lease obligations</td><td> </td>
<td style="text-align: left">$</td><td style="text-align: right">–</td><td style="text-align: left"> </td><td> </td>
<td style="text-align: left">$</td><td style="text-align: right">–</td><td style="text-align: left"> </td></tr>
</table>
<p id="xdx_8A7_zs2U7K4NWY34" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"> </p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in">The weighted average remaining
discount rate is <span id="xdx_90C_eus-gaap--OperatingLeaseWeightedAverageDiscountRatePercent_iI_pip0_dp_c20230331_zjFbxojfN0Kd" title="Operating Lease, Weighted Average Discount Rate, Percent"><span id="xdx_904_eus-gaap--FinanceLeaseWeightedAverageDiscountRatePercent_iI_pip0_dp_c20230331_z9XPADYig31h" title="Finance Lease, Weighted Average Discount Rate, Percent">5.25</span></span>% for the Company’s operating and financing leases. The weighted average remaining lease term is <span id="xdx_90D_eus-gaap--OperatingLeaseWeightedAverageRemainingLeaseTerm1_iI_dtY_c20230331_zADJCC9kPUXf" title="Operating Lease, Weighted Average Remaining Lease Term">2.9</span> years
for operating leases and <span id="xdx_908_eus-gaap--FinanceLeaseWeightedAverageRemainingLeaseTerm1_iI_dtY_c20230331_zTEx4fjSkzSa" title="Finance Lease, Weighted Average Remaining Lease Term">3.3</span> years for the financing lease.</p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"> </p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in">Effective May 1, 2023,
the Company will lease an additional 404 square feet at its Tempe office location under an amendment to its current lease. The monthly
rent payment will increase from $1,277 per month to $2,365 per month and will be accounted for as a modification to the lease under ASC
842 at the time of commencement.</p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"> </p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in">The Company recently terminated
its office lease in Cambridge, Massachusetts as of March 31, 2023. The cost of the lease was $2,942 per month. In December 2022, the Company
entered into a lease agreement for a tool in Tempe, Arizona. The term of this lease is for six months beginning on January 1, 2023 with
an option to extend the lease for an additional six months. The initial lease terms were $96,000 per month. In March 2023, the Company
elected to extend the lease through December 31, 2023, the remaining lease payments will be reduced to $84,000 over the remainder of the
lease. Since the lease and extension are not for more than one year, the future lease payments are not included in the lease obligations
on the Company’s condensed balance sheets.</p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"> </p>
<table cellpadding="0" cellspacing="0" id="xdx_89C_eus-gaap--LeaseCostTableTextBlock_pn3n3_zGMBf31XrpP6" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%" summary="xdx: Disclosure - LEASES (Details - Lease costs)">
<tr style="vertical-align: bottom">
<td><span id="xdx_8B8_z67dpVqt968h" style="display: none">Components of lease costs</span> </td><td> </td>
<td colspan="2" id="xdx_496_20230101__20230331_zZfC8f6Fpcdl" style="text-align: center"> </td><td> </td><td> </td>
<td colspan="2" id="xdx_49D_20220101__20220331_zhDMyETPYYWd" style="text-align: center"> </td><td> </td></tr>
<tr style="vertical-align: bottom">
<td> </td><td style="padding-bottom: 1pt"> </td>
<td colspan="6" style="border-bottom: Black 1pt solid; text-align: center"><p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><b>Three Months Ended </b></p> <p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><b>March 31,</b></p></td><td style="padding-bottom: 1pt"> </td></tr>
<tr style="vertical-align: bottom">
<td> </td><td style="font-weight: bold; padding-bottom: 1pt"> </td>
<td colspan="2" style="border-bottom: Black 1pt solid; font-weight: bold; text-align: center">2023</td><td style="padding-bottom: 1pt; font-weight: bold"> </td><td style="font-weight: bold; padding-bottom: 1pt"> </td>
<td colspan="2" style="border-bottom: Black 1pt solid; font-weight: bold; text-align: center">2022</td><td style="padding-bottom: 1pt; font-weight: bold"> </td></tr>
<tr id="xdx_40E_eus-gaap--LeaseCostAbstract_iB" style="vertical-align: bottom; background-color: rgb(238,238,238)">
<td style="text-align: left">Financing lease costs:</td><td> </td>
<td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td><td> </td>
<td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td></tr>
<tr id="xdx_40D_eus-gaap--FinanceLeaseRightOfUseAssetAmortization_maLCzSfC_z1FlH66W77yc" style="vertical-align: bottom; background-color: White">
<td style="width: 66%; text-align: left; padding-left: 10pt">Amortization of ROU assets</td><td style="width: 2%"> </td>
<td style="width: 1%; text-align: left">$</td><td style="width: 13%; text-align: right">291</td><td style="width: 1%; text-align: left"> </td><td style="width: 2%"> </td>
<td style="width: 1%; text-align: left">$</td><td style="width: 13%; text-align: right">319</td><td style="width: 1%; text-align: left"> </td></tr>
<tr id="xdx_403_eus-gaap--FinanceLeaseInterestExpense_maLCzSfC_zhc5khWlGyn5" style="vertical-align: bottom; background-color: rgb(238,238,238)">
<td style="text-align: left; padding-bottom: 1pt; padding-left: 10pt">Interest on lease liabilities</td><td style="padding-bottom: 1pt"> </td>
<td style="border-bottom: Black 1pt solid; text-align: left"> </td><td style="border-bottom: Black 1pt solid; text-align: right">53</td><td style="padding-bottom: 1pt; text-align: left"> </td><td style="padding-bottom: 1pt"> </td>
<td style="border-bottom: Black 1pt solid; text-align: left"> </td><td style="border-bottom: Black 1pt solid; text-align: right">71</td><td style="padding-bottom: 1pt; text-align: left"> </td></tr>
<tr id="xdx_40D_eus-gaap--LeaseCost_iT_pn3n3_mtLCzSfC_zUOsUTpO7Nk7" style="vertical-align: bottom; background-color: White">
<td style="text-align: left; padding-bottom: 2.5pt">Total financing lease costs</td><td style="padding-bottom: 2.5pt"> </td>
<td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td style="border-bottom: Black 2.5pt double; text-align: right">344</td><td style="padding-bottom: 2.5pt; text-align: left"> </td><td style="padding-bottom: 2.5pt"> </td>
<td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td style="border-bottom: Black 2.5pt double; text-align: right">390</td><td style="padding-bottom: 2.5pt; text-align: left"> </td></tr>
<tr style="vertical-align: bottom; background-color: rgb(238,238,238)">
<td> </td><td> </td>
<td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td><td> </td>
<td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td></tr>
<tr id="xdx_403_ecustom--OperatingLeaseCostAbstract_iB" style="vertical-align: bottom; background-color: White">
<td style="text-align: left">Operating lease costs:</td><td> </td>
<td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td><td> </td>
<td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td></tr>
<tr id="xdx_40A_ecustom--FixedLeaseCosts_maOLCznPz_z9WHhdNdBlD9" style="vertical-align: bottom; background-color: rgb(238,238,238)">
<td style="text-align: left; padding-left: 10pt">Fixed lease costs</td><td> </td>
<td style="text-align: left">$</td><td style="text-align: right">62</td><td style="text-align: left"> </td><td> </td>
<td style="text-align: left">$</td><td style="text-align: right">62</td><td style="text-align: left"> </td></tr>
<tr id="xdx_408_eus-gaap--ShortTermLeaseCost_maOLCznPz_zSlzX84Xb495" style="vertical-align: bottom; background-color: White">
<td style="text-align: left; padding-bottom: 1pt; padding-left: 10pt">Short-term lease costs</td><td style="padding-bottom: 1pt"> </td>
<td style="border-bottom: Black 1pt solid; text-align: left"> </td><td style="border-bottom: Black 1pt solid; text-align: right">297</td><td style="padding-bottom: 1pt; text-align: left"> </td><td style="padding-bottom: 1pt"> </td>
<td style="border-bottom: Black 1pt solid; text-align: left"> </td><td style="border-bottom: Black 1pt solid; text-align: right">11</td><td style="padding-bottom: 1pt; text-align: left"> </td></tr>
<tr id="xdx_40F_eus-gaap--OperatingLeaseCost_iT_pn3n3_mtOLCznPz_zlNkv4P80pBk" style="vertical-align: bottom; background-color: rgb(238,238,238)">
<td style="text-align: left; padding-bottom: 2.5pt">Total operating lease costs</td><td style="padding-bottom: 2.5pt"> </td>
<td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td style="border-bottom: Black 2.5pt double; text-align: right">359</td><td style="padding-bottom: 2.5pt; text-align: left"> </td><td style="padding-bottom: 2.5pt"> </td>
<td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td style="border-bottom: Black 2.5pt double; text-align: right">73</td><td style="padding-bottom: 2.5pt; text-align: left"> </td></tr>
</table>
291000
319000
53000
71000
344000
390000
62000
62000
297000
11000
359000
73000
<table cellpadding="0" cellspacing="0" id="xdx_89A_eus-gaap--LesseeOperatingLeaseLiabilityMaturityTableTextBlock_pn3n3_zh7ZxVd6ULJl" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%" summary="xdx: Disclosure - LEASES (Details - Minimum lease payments)">
<tr style="vertical-align: bottom">
<td><span id="xdx_8BF_zz56d30VQN83" style="display: none">Schedule of future minimum lease payments</span> </td><td> </td><td> </td>
<td colspan="2" style="text-align: right"> </td><td> </td><td> </td>
<td colspan="2" style="text-align: right"> </td><td> </td></tr>
<tr style="vertical-align: bottom">
<td style="border-bottom: Black 1pt solid; font-weight: bold">For the Year Ended December 31,</td><td style="padding-bottom: 1pt; font-weight: bold"> </td><td style="font-weight: bold; padding-bottom: 1pt"> </td>
<td colspan="2" style="border-bottom: Black 1pt solid; font-weight: bold; text-align: center">Financing leases</td><td style="padding-bottom: 1pt; font-weight: bold"> </td><td style="font-weight: bold; padding-bottom: 1pt"> </td>
<td colspan="2" style="border-bottom: Black 1pt solid; font-weight: bold; text-align: center">Operating leases</td><td style="padding-bottom: 1pt; font-weight: bold"> </td></tr>
<tr style="vertical-align: bottom; background-color: rgb(238,238,238)">
<td style="width: 60%; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Remaining 2023</span></td><td style="width: 1%; text-align: left"> </td><td style="width: 2%"> </td>
<td style="width: 1%; text-align: left">$</td><td id="xdx_989_eus-gaap--FinanceLeaseLiabilityPaymentsDueNextTwelveMonths_iI_pn3n3_c20230331__us-gaap--LongtermDebtTypeAxis__custom--FinancingLeasesMember_zE2KGzEAVNX8" style="width: 13%; text-align: right" title="Remaining 2023">839</td><td style="width: 1%; text-align: left"> </td><td style="width: 2%"> </td>
<td style="width: 1%; text-align: left">$</td><td id="xdx_984_eus-gaap--LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths_iI_pn3n3_c20230331__us-gaap--PropertySubjectToOrAvailableForOperatingLeaseAxis__custom--OperatingLeasesMember_zaMOTptrL9va" style="width: 13%; text-align: right" title="Remaining 2023">198</td><td style="width: 1%; text-align: left"> </td></tr>
<tr style="vertical-align: bottom; background-color: White">
<td style="text-align: left">2024</td><td style="text-align: left"> </td><td> </td>
<td style="text-align: left"> </td><td id="xdx_98F_eus-gaap--FinanceLeaseLiabilityPaymentsDueYearTwo_iI_pn3n3_c20230331__us-gaap--LongtermDebtTypeAxis__custom--FinancingLeasesMember_zxJBI3LMaujj" style="text-align: right" title="2024">1,436</td><td style="text-align: left"> </td><td> </td>
<td style="text-align: left"> </td><td id="xdx_986_eus-gaap--LesseeOperatingLeaseLiabilityPaymentsDueYearTwo_iI_pn3n3_c20230331__us-gaap--PropertySubjectToOrAvailableForOperatingLeaseAxis__custom--OperatingLeasesMember_zNPjN5CI2VB9" style="text-align: right" title="2024">278</td><td style="text-align: left"> </td></tr>
<tr style="vertical-align: bottom; background-color: rgb(238,238,238)">
<td style="text-align: left">2025</td><td style="text-align: left"> </td><td> </td>
<td style="text-align: left"> </td><td id="xdx_983_eus-gaap--FinanceLeaseLiabilityPaymentsDueYearThree_iI_pn3n3_c20230331__us-gaap--LongtermDebtTypeAxis__custom--FinancingLeasesMember_zoMy9EyqDS6j" style="text-align: right" title="2025">1,436</td><td style="text-align: left"> </td><td> </td>
<td style="text-align: left"> </td><td id="xdx_985_eus-gaap--LesseeOperatingLeaseLiabilityPaymentsDueYearThree_iI_pn3n3_c20230331__us-gaap--PropertySubjectToOrAvailableForOperatingLeaseAxis__custom--OperatingLeasesMember_zzyZor9xvDkl" style="text-align: right" title="2025">284</td><td style="text-align: left"> </td></tr>
<tr style="vertical-align: bottom; background-color: White">
<td style="text-align: left">2026</td><td style="text-align: left"> </td><td> </td>
<td style="text-align: left"> </td><td id="xdx_98B_eus-gaap--FinanceLeaseLiabilityPaymentsDueYearFour_iI_pn3n3_c20230331__us-gaap--LongtermDebtTypeAxis__custom--FinancingLeasesMember_zvaxcGsULjOb" style="text-align: right" title="2026">478</td><td style="text-align: left"> </td><td> </td>
<td style="text-align: left"> </td><td id="xdx_98E_eus-gaap--LesseeOperatingLeaseLiabilityPaymentsDueYearFour_iI_pn3n3_c20230331__us-gaap--PropertySubjectToOrAvailableForOperatingLeaseAxis__custom--OperatingLeasesMember_zyKoUPGaTkJi" style="text-align: right" title="2026">21</td><td style="text-align: left"> </td></tr>
<tr style="vertical-align: bottom; background-color: rgb(238,238,238)">
<td style="padding-bottom: 1pt; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">2027 & thereafter</span></td><td style="padding-bottom: 1pt; text-align: left"> </td><td style="padding-bottom: 1pt"> </td>
<td style="border-bottom: Black 1pt solid; text-align: left"> </td><td id="xdx_989_eus-gaap--FinanceLeaseLiabilityPaymentsDueYearFive_iI_pn3n3_d0_c20230331__us-gaap--LongtermDebtTypeAxis__custom--FinancingLeasesMember_zDsfiBAwxkI6" style="border-bottom: Black 1pt solid; text-align: right" title="2027 & thereafter">–</td><td style="padding-bottom: 1pt; text-align: left"> </td><td style="padding-bottom: 1pt"> </td>
<td style="border-bottom: Black 1pt solid; text-align: left"> </td><td id="xdx_980_eus-gaap--LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive_iI_pn3n3_d0_c20230331__us-gaap--PropertySubjectToOrAvailableForOperatingLeaseAxis__custom--OperatingLeasesMember_zSJR2sALhQre" style="border-bottom: Black 1pt solid; text-align: right" title="2027 & thereafter">–</td><td style="padding-bottom: 1pt; text-align: left"> </td></tr>
<tr style="vertical-align: bottom; background-color: White">
<td style="padding-left: 10pt; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Total future minimum lease payments</span></td><td style="text-align: left"> </td><td> </td>
<td style="text-align: left">$</td><td id="xdx_986_eus-gaap--FinanceLeaseLiabilityPaymentsDue_c20230331__us-gaap--LongtermDebtTypeAxis__custom--FinancingLeasesMember_pn3n3" style="text-align: right" title="Total future minimum lease payments">4,189</td><td style="text-align: left"> </td><td> </td>
<td style="text-align: left">$</td><td id="xdx_98B_eus-gaap--LesseeOperatingLeaseLiabilityPaymentsDue_c20230331__us-gaap--PropertySubjectToOrAvailableForOperatingLeaseAxis__custom--OperatingLeasesMember_pn3n3" style="text-align: right" title="Total future minimum lease payments">781</td><td style="text-align: left"> </td></tr>
<tr style="vertical-align: bottom; background-color: rgb(238,238,238)">
<td style="padding-bottom: 1pt; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Less imputed interest</span></td><td style="padding-bottom: 1pt; text-align: left"> </td><td style="padding-bottom: 1pt"> </td>
<td style="border-bottom: Black 1pt solid; text-align: left"> </td><td id="xdx_98F_eus-gaap--FinanceLeaseLiabilityUndiscountedExcessAmount_iNI_pn3n3_di_c20230331__us-gaap--LongtermDebtTypeAxis__custom--FinancingLeasesMember_ziSzxyMhFXP" style="border-bottom: Black 1pt solid; text-align: right" title="Less imputed interest">(266</td><td style="padding-bottom: 1pt; text-align: left">)</td><td style="padding-bottom: 1pt"> </td>
<td style="border-bottom: Black 1pt solid; text-align: left"> </td><td id="xdx_98F_ecustom--OperatingLeasesFutureMinimumPaymentsInterestIncludedInPayments_c20230331__us-gaap--PropertySubjectToOrAvailableForOperatingLeaseAxis__custom--OperatingLeasesMember_pn3n3" style="border-bottom: Black 1pt solid; text-align: right" title="Less imputed interest">(59</td><td style="padding-bottom: 1pt; text-align: left">)</td></tr>
<tr style="vertical-align: bottom; background-color: White">
<td style="padding-bottom: 2.5pt; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Total lease liability</span></td><td style="padding-bottom: 2.5pt; text-align: left"> </td><td style="padding-bottom: 2.5pt"> </td>
<td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td id="xdx_98D_eus-gaap--FinanceLeaseLiability_c20230331__us-gaap--LongtermDebtTypeAxis__custom--FinancingLeasesMember_pn3n3" style="border-bottom: Black 2.5pt double; text-align: right" title="Total lease liability">3,923</td><td style="padding-bottom: 2.5pt; text-align: left"> </td><td style="padding-bottom: 2.5pt"> </td>
<td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td id="xdx_987_eus-gaap--OperatingLeaseLiability_c20230331__us-gaap--PropertySubjectToOrAvailableForOperatingLeaseAxis__custom--OperatingLeasesMember_pn3n3" style="border-bottom: Black 2.5pt double; text-align: right" title="Total lease liability">722</td><td style="padding-bottom: 2.5pt; text-align: left"> </td></tr>
</table>
839000
198000
1436000
278000
1436000
284000
478000
21000
0
0
4189000
781000
266000
-59000
3923000
722000
<table cellpadding="0" cellspacing="0" id="xdx_890_eus-gaap--ScheduleOfCashFlowSupplementalDisclosuresTableTextBlock_pn3n3_zST8r6JPDlia" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%" summary="xdx: Disclosure - LEASES (Details - Cash flow effect)">
<tr style="vertical-align: bottom">
<td><span id="xdx_8B5_z9sO7Ft0XEYf" style="display: none">Supplemental non-cash activity related to operating and
financing leases</span> </td><td> </td>
<td colspan="2" id="xdx_493_20230101__20230331_zR9VINA7FEZg" style="text-align: center"> </td><td> </td><td> </td>
<td colspan="2" id="xdx_496_20220101__20220331_zxKNP4UO46o8" style="text-align: center"> </td><td> </td></tr>
<tr style="vertical-align: bottom">
<td> </td><td style="padding-bottom: 1pt"> </td>
<td colspan="6" style="border-bottom: Black 1pt solid; text-align: center"><p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><b>Three Months Ended</b></p> <p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><b>March 31,</b></p></td><td style="padding-bottom: 1pt"> </td></tr>
<tr style="vertical-align: bottom">
<td style="text-align: justify"> </td><td style="font-weight: bold; padding-bottom: 1pt"> </td>
<td colspan="2" style="border-bottom: Black 1pt solid; font-weight: bold; text-align: center">2023</td><td style="padding-bottom: 1pt; font-weight: bold"> </td><td style="font-weight: bold; padding-bottom: 1pt"> </td>
<td colspan="2" style="border-bottom: Black 1pt solid; font-weight: bold; text-align: center">2022</td><td style="padding-bottom: 1pt; font-weight: bold"> </td></tr>
<tr id="xdx_407_eus-gaap--SupplementalCashFlowElementsAbstract_iB" style="vertical-align: bottom; background-color: rgb(238,238,238)">
<td style="font-weight: bold; text-align: justify">Operating cash flow information:</td><td> </td>
<td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td><td> </td>
<td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td></tr>
<tr id="xdx_40B_eus-gaap--OperatingLeasePayments_i01_pn3n3" style="vertical-align: bottom; background-color: White">
<td style="padding-left: 10pt; width: 66%; text-align: left">Cash paid for amounts included in the measurement of operating lease liabilities</td><td style="width: 2%"> </td>
<td style="width: 1%; text-align: left">$</td><td style="width: 13%; text-align: right">56</td><td style="width: 1%; text-align: left"> </td><td style="width: 2%"> </td>
<td style="width: 1%; text-align: left">$</td><td style="width: 13%; text-align: right">54</td><td style="width: 1%; text-align: left"> </td></tr>
<tr id="xdx_40A_eus-gaap--FinanceLeasePrincipalPayments_i01_pn3n3" style="vertical-align: bottom; background-color: rgb(238,238,238)">
<td style="padding-left: 10pt; text-align: left">Cash paid for amounts included in the measurement of financing liabilities</td><td> </td>
<td style="text-align: left">$</td><td style="text-align: right">241</td><td style="text-align: left"> </td><td> </td>
<td style="text-align: left">$</td><td style="text-align: right">359</td><td style="text-align: left"> </td></tr>
<tr id="xdx_408_eus-gaap--NoncashInvestingAndFinancingItemsAbstract_iB" style="vertical-align: bottom; background-color: White">
<td style="font-weight: bold; text-align: justify">Non-cash activity:</td><td> </td>
<td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td><td> </td>
<td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td></tr>
<tr id="xdx_401_eus-gaap--RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability_i01_pn3n3_d0_zTW8H5vu5GQk" style="vertical-align: bottom; background-color: rgb(238,238,238)">
<td style="padding-left: 10pt; text-align: left">Right-of-use assets obtained in exchange for operating lease obligations</td><td> </td>
<td style="text-align: left">$</td><td style="text-align: right">–</td><td style="text-align: left"> </td><td> </td>
<td style="text-align: left">$</td><td style="text-align: right">–</td><td style="text-align: left"> </td></tr>
<tr id="xdx_404_eus-gaap--RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability_i01_pn3n3_d0_z5jLp1OWjw9j" style="vertical-align: bottom; background-color: White">
<td style="padding-left: 10pt; text-align: left">Right-of-use assets obtained in exchange for financing lease obligations</td><td> </td>
<td style="text-align: left">$</td><td style="text-align: right">–</td><td style="text-align: left"> </td><td> </td>
<td style="text-align: left">$</td><td style="text-align: right">–</td><td style="text-align: left"> </td></tr>
</table>
56000
54000
241000
359000
0
0
0
0
0.0525
0.0525
P2Y10M24D
P3Y3M18D
<p id="xdx_804_eus-gaap--DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock_zN9FxEiQJDdj" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"> </p>
<table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<tr style="vertical-align: top">
<td style="width: 48px"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>8.</b></span></td>
<td style="text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b><span id="xdx_82A_zhqUnnQ6DHwc">STOCK BASED COMPENSATION</span></b></span></td></tr>
</table>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"> </p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in">In May 2017, the Company’s
shareholders approved its 2017 Stock Incentive Plan (“2017 Plan”) after its 2007 Stock Incentive Plan (“2007 Plan”)
had expired in March 2017. The 2017 Plan provides for the grant of non-qualified stock options and incentive stock options to purchase
shares of the Company’s common stock and for the grant of restricted and unrestricted shares. The 2017 Plan provides for the issuance
of <span id="xdx_906_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized_iI_pn3n3_c20230331__us-gaap--PlanNameAxis__custom--Plan2017Member_zTwiGXiZFGr3" title="Shares authorized for issuance">3,750</span>,000 shares of common stock. All of the Company’s employees and any subsidiary employees (including officers and directors
who are also employees), as well as all of the Company’s nonemployee directors and other consultants, advisors and other persons
who provide services to the Company are eligible to receive incentive awards under the 2017 Plan. Generally, stock options and restricted
stock issued under the 2017 Plan vest over a period of one to four years from the date of grant.</p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"> </p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in">The following table summarizes
the stock-based compensation expense recorded in the Company’s results of operations during the three months ended March 31, 2023
and 2022 for stock options and restricted stock granted under the Company’s incentive plans (in thousands):</p>
<table cellpadding="0" cellspacing="0" id="xdx_89E_eus-gaap--ScheduleOfEmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTextBlock_pn3n3_zj9s4GyBusvh" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%" summary="xdx: Disclosure - STOCK BASED COMPENSATION (Details - Compensation Expense)">
<tr style="vertical-align: bottom">
<td><span id="xdx_8BD_zupHBorgGMG8" style="display: none">Schedule of stock-based compensation expense</span> </td><td> </td>
<td colspan="2" style="text-align: right"> </td><td> </td><td> </td>
<td colspan="2" style="text-align: right"> </td><td> </td></tr>
<tr style="vertical-align: bottom">
<td> </td><td style="padding-bottom: 1pt"> </td>
<td colspan="6" style="border-bottom: Black 1pt solid; text-align: center"><p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><b>Three Months Ended</b></p> <p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><b>March 31,</b></p></td><td style="padding-bottom: 1pt"> </td></tr>
<tr style="vertical-align: bottom">
<td> </td><td style="font-weight: bold; padding-bottom: 1pt"> </td>
<td colspan="2" style="border-bottom: Black 1pt solid; font-weight: bold; text-align: center">2023</td><td style="padding-bottom: 1pt; font-weight: bold"> </td><td style="font-weight: bold; padding-bottom: 1pt"> </td>
<td colspan="2" style="border-bottom: Black 1pt solid; font-weight: bold; text-align: center">2022</td><td style="padding-bottom: 1pt; font-weight: bold"> </td></tr>
<tr style="vertical-align: bottom; background-color: rgb(238,238,238)">
<td style="width: 66%; text-align: left">Research and development</td><td style="width: 2%"> </td>
<td style="width: 1%; text-align: left">$</td><td id="xdx_983_eus-gaap--ShareBasedCompensation_c20230101__20230331__us-gaap--IncomeStatementLocationAxis__us-gaap--ResearchAndDevelopmentExpenseMember_pn3n3" style="width: 13%; text-align: right" title="Allocated stock-based compensation">328</td><td style="width: 1%; text-align: left"> </td><td style="width: 2%"> </td>
<td style="width: 1%; text-align: left">$</td><td id="xdx_985_eus-gaap--ShareBasedCompensation_c20220101__20220331__us-gaap--IncomeStatementLocationAxis__us-gaap--ResearchAndDevelopmentExpenseMember_pn3n3" style="width: 13%; text-align: right" title="Allocated stock-based compensation">244</td><td style="width: 1%; text-align: left"> </td></tr>
<tr style="vertical-align: bottom; background-color: White">
<td style="text-align: left">General and administrative</td><td> </td>
<td style="text-align: left"> </td><td id="xdx_983_eus-gaap--ShareBasedCompensation_c20230101__20230331__us-gaap--IncomeStatementLocationAxis__us-gaap--GeneralAndAdministrativeExpenseMember_pn3n3" style="text-align: right" title="Allocated stock-based compensation">525</td><td style="text-align: left"> </td><td> </td>
<td style="text-align: left"> </td><td id="xdx_981_eus-gaap--ShareBasedCompensation_c20220101__20220331__us-gaap--IncomeStatementLocationAxis__us-gaap--GeneralAndAdministrativeExpenseMember_pn3n3" style="text-align: right" title="Allocated stock-based compensation">429</td><td style="text-align: left"> </td></tr>
<tr style="vertical-align: bottom; background-color: rgb(238,238,238)">
<td style="text-align: left; padding-bottom: 1pt">Selling and Marketing</td><td style="padding-bottom: 1pt"> </td>
<td style="border-bottom: Black 1pt solid; text-align: left"> </td><td id="xdx_98B_eus-gaap--ShareBasedCompensation_c20230101__20230331__us-gaap--IncomeStatementLocationAxis__custom--SellingAndMarketingMember_pn3n3" style="border-bottom: Black 1pt solid; text-align: right" title="Allocated stock-based compensation">74</td><td style="padding-bottom: 1pt; text-align: left"> </td><td style="padding-bottom: 1pt"> </td>
<td style="border-bottom: Black 1pt solid; text-align: left"> </td><td id="xdx_989_eus-gaap--ShareBasedCompensation_c20220101__20220331__us-gaap--IncomeStatementLocationAxis__custom--SellingAndMarketingMember_pn3n3" style="border-bottom: Black 1pt solid; text-align: right" title="Allocated stock-based compensation">53</td><td style="padding-bottom: 1pt; text-align: left"> </td></tr>
<tr style="vertical-align: bottom; background-color: White">
<td style="padding-left: 10pt; padding-bottom: 2.5pt">Total</td><td style="padding-bottom: 2.5pt"> </td>
<td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td id="xdx_981_eus-gaap--ShareBasedCompensation_c20230101__20230331_pn3n3" style="border-bottom: Black 2.5pt double; text-align: right" title="Allocated stock-based compensation">927</td><td style="padding-bottom: 2.5pt; text-align: left"> </td><td style="padding-bottom: 2.5pt"> </td>
<td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td id="xdx_986_eus-gaap--ShareBasedCompensation_pn3n3_c20220101__20220331_zVProDVGTAg6" style="border-bottom: Black 2.5pt double; text-align: right" title="Allocated stock-based compensation">726</td><td style="padding-bottom: 2.5pt; text-align: left"> </td></tr>
</table>
<p id="xdx_8A4_z5rLU5GIa5Ag" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"> </p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in">As of March 31, 2023, there
was approximately $<span id="xdx_908_eus-gaap--EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized_iI_pn3n3_dm_c20230331__us-gaap--AwardTypeAxis__us-gaap--StockOptionMember_zVA6epoHuBhb" title="Unrecognized compensation expense">9.2</span> million of total unrecognized compensation expense related to unvested share-based compensation arrangements. This
cost is expected to be recognized over a weighted-average period of <span id="xdx_90E_eus-gaap--EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1_dtY_c20230101__20230331__us-gaap--AwardTypeAxis__us-gaap--StockOptionMember_zWSYP26hkC88" title="Unrecognized compensation weighted average period">2.9</span> years.</p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"> </p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in">The weighted average grant
date fair value per share of the options granted under the Company’s 2017 Plan was $<span id="xdx_900_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue_pip0_c20230101__20230331__us-gaap--AwardTypeAxis__us-gaap--StockOptionMember_zbkv6kZeGr3g" title="Weighted average grant date fair value per share">4.95</span> and $<span id="xdx_908_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue_pip0_c20220101__20220331__us-gaap--AwardTypeAxis__us-gaap--StockOptionMember_zIjvJtAAWVP3" title="Weighted average grant date fair value per share">10.60</span> for the three months ended March
31, 2023 and 2022, respectively.</p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"> </p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in">The following table summarizes
stock option activity during the three months ended March 31, 2023 (in thousands except exercise prices and contractual terms):</p>
<table cellpadding="0" cellspacing="0" id="xdx_898_eus-gaap--ScheduleOfStockOptionsRollForwardTableTextBlock_pn3n3_zop5HQkyP9M5" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%" summary="xdx: Disclosure - STOCK BASED COMPENSATION (Details - Stock Option Activity)">
<tr style="vertical-align: bottom">
<td><span id="xdx_8BE_zfETfemmKERe" style="display: none">Schedule of stock option activity</span> </td><td> </td><td> </td>
<td colspan="2" style="text-align: right"> </td><td> </td><td> </td>
<td colspan="2" style="text-align: right"> </td><td> </td><td> </td>
<td colspan="2" style="text-align: right"> </td><td> </td><td> </td>
<td colspan="2" style="text-align: right"> </td><td> </td></tr>
<tr style="vertical-align: bottom">
<td> </td><td style="padding-bottom: 1pt"> </td><td style="padding-bottom: 1pt"> </td>
<td colspan="2" style="border-bottom: Black 1pt solid; text-align: center"><p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><b>Number of</b></p> <p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><b>Shares</b></p></td><td style="padding-bottom: 1pt"> </td><td style="padding-bottom: 1pt"> </td>
<td colspan="2" style="border-bottom: Black 1pt solid; text-align: center"><p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><b>Weighted-</b></p> <p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><b>Average</b></p> <p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><b>Exercise</b></p> <p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><b>Prices per Share</b></p></td><td style="padding-bottom: 1pt"> </td><td style="padding-bottom: 1pt"> </td>
<td colspan="2" style="border-bottom: Black 1pt solid; text-align: center"><p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><b>Weighted-<br/> Average</b></p> <p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><b>Remaining</b></p> <p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><b>Contractual</b></p> <p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><b>Term (In Years)</b></p></td><td style="padding-bottom: 1pt"> </td><td style="font-weight: bold; padding-bottom: 1pt"> </td>
<td colspan="2" style="border-bottom: Black 1pt solid; font-weight: bold; text-align: center">Intrinsic <br/> Value</td><td style="padding-bottom: 1pt; font-weight: bold"> </td></tr>
<tr style="vertical-align: bottom; background-color: rgb(238,238,238)">
<td style="width: 39%; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Outstanding at January 1, 2023</span></td><td style="width: 1%; text-align: left"> </td><td style="width: 2%"> </td>
<td style="width: 1%; text-align: left"> </td><td id="xdx_98C_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber_iS_pn3n3_c20230101__20230331__us-gaap--AwardTypeAxis__us-gaap--StockOptionMember_zR4jAmiPnjJ6" style="width: 11%; text-align: right" title="Options outstanding, beginning balance">3,009</td><td style="width: 1%; text-align: left"> </td><td style="width: 2%"> </td>
<td style="width: 1%; text-align: left">$</td><td id="xdx_985_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice_iS_pip0_c20230101__20230331__us-gaap--AwardTypeAxis__us-gaap--StockOptionMember_zL5I24CNbHh9" style="width: 11%; text-align: right" title="Weighted average exercise price, options outstanding beginning balance">7.07</td><td style="width: 1%; text-align: left"> </td><td style="width: 2%"> </td>
<td style="width: 1%; text-align: left"> </td><td style="width: 11%; text-align: right"> </td><td style="width: 1%; text-align: left"> </td><td style="width: 2%"> </td>
<td style="width: 1%; text-align: left"> </td><td style="width: 11%; text-align: right"> </td><td style="width: 1%; text-align: left"> </td></tr>
<tr style="vertical-align: bottom; background-color: White">
<td style="padding-left: 10pt; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Granted</span></td><td style="text-align: left"> </td><td> </td>
<td style="text-align: left"> </td><td id="xdx_98A_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross_pn3n3_c20230101__20230331__us-gaap--AwardTypeAxis__us-gaap--StockOptionMember_zNS98kM0Qhs6" style="text-align: right" title="Options granted">375</td><td style="text-align: left"> </td><td> </td>
<td style="text-align: left">$</td><td id="xdx_981_eus-gaap--ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice_pip0_c20230101__20230331__us-gaap--AwardTypeAxis__us-gaap--StockOptionMember_zuQChj90eGG6" style="text-align: right" title="Weighted average exercise price, options granted">6.56</td><td style="text-align: left"> </td><td> </td>
<td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td><td> </td>
<td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td></tr>
<tr style="vertical-align: bottom; background-color: rgb(238,238,238)">
<td style="padding-left: 10pt; padding-bottom: 1pt; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Exercised</span></td><td style="padding-bottom: 1pt; text-align: left"> </td><td style="padding-bottom: 1pt"> </td>
<td style="border-bottom: Black 1pt solid; text-align: left"> </td><td id="xdx_981_eus-gaap--StockIssuedDuringPeriodSharesStockOptionsExercised_iN_pn3n3_di_c20230101__20230331__us-gaap--AwardTypeAxis__us-gaap--StockOptionMember_zOn04Dzzg3wa" style="border-bottom: Black 1pt solid; text-align: right" title="Options exercised">(10</td><td style="padding-bottom: 1pt; text-align: left">)</td><td style="padding-bottom: 1pt"> </td>
<td style="padding-bottom: 1pt; text-align: left">$</td><td id="xdx_98D_eus-gaap--ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice_pip0_c20230101__20230331__us-gaap--AwardTypeAxis__us-gaap--StockOptionMember_zPzalKC4osj9" style="padding-bottom: 1pt; text-align: right" title="Weighted average exercise price, options exercised">3.90</td><td style="padding-bottom: 1pt; text-align: left"> </td><td style="padding-bottom: 1pt"> </td>
<td style="padding-bottom: 1pt; text-align: left"> </td><td style="padding-bottom: 1pt; text-align: right"> </td><td style="padding-bottom: 1pt; text-align: left"> </td><td style="padding-bottom: 1pt"> </td>
<td style="padding-bottom: 1pt; text-align: left"> </td><td style="padding-bottom: 1pt; text-align: right"> </td><td style="padding-bottom: 1pt; text-align: left"> </td></tr>
<tr style="vertical-align: bottom; background-color: White">
<td style="padding-bottom: 2.5pt; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Outstanding at March 31, 2023</span></td><td style="padding-bottom: 2.5pt; text-align: left"> </td><td style="padding-bottom: 2.5pt"> </td>
<td style="border-bottom: Black 2.5pt double; text-align: left"> </td><td id="xdx_982_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber_iE_pn3n3_c20230101__20230331__us-gaap--AwardTypeAxis__us-gaap--StockOptionMember_z30duaHu0Ap" style="border-bottom: Black 2.5pt double; text-align: right" title="Options outstanding, ending balance">3,374</td><td style="padding-bottom: 2.5pt; text-align: left"> </td><td style="padding-bottom: 2.5pt"> </td>
<td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td id="xdx_988_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice_iE_pip0_c20230101__20230331__us-gaap--AwardTypeAxis__us-gaap--StockOptionMember_zw3RBqBBLE37" style="border-bottom: Black 2.5pt double; text-align: right" title="Weighted average exercise price, options outstanding, ending balance">7.02</td><td style="padding-bottom: 2.5pt; text-align: left"> </td><td style="padding-bottom: 2.5pt"> </td>
<td style="border-bottom: Black 2.5pt double; text-align: left"> </td><td style="border-bottom: Black 2.5pt double; text-align: right"><span id="xdx_90C_eus-gaap--SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2_dtY_c20230101__20230331__us-gaap--AwardTypeAxis__us-gaap--StockOptionMember_zMaIr4xfZUWj" title="Weighted average remaining contractual term, options outstanding">5.38</span></td><td style="padding-bottom: 2.5pt; text-align: left"> </td><td style="padding-bottom: 2.5pt"> </td>
<td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td id="xdx_980_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue_iI_pn3n3_c20230331__us-gaap--AwardTypeAxis__us-gaap--StockOptionMember_zqYR90CcrqKc" style="border-bottom: Black 2.5pt double; text-align: right" title="Intrinsic value, options outstanding ending balance">2,430</td><td style="padding-bottom: 2.5pt; text-align: left"> </td></tr>
<tr style="vertical-align: bottom; background-color: rgb(238,238,238)">
<td style="padding-bottom: 2.5pt; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Exercisable at March 31, 2023</span></td><td style="padding-bottom: 2.5pt; text-align: left"> </td><td style="padding-bottom: 2.5pt"> </td>
<td style="border-bottom: Black 2.5pt double; text-align: left"> </td><td id="xdx_984_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber_iI_pn3n3_c20230331__us-gaap--AwardTypeAxis__us-gaap--StockOptionMember_zV30M3nxWi7b" style="border-bottom: Black 2.5pt double; text-align: right" title="Options exercisable">2,649</td><td style="padding-bottom: 2.5pt; text-align: left"> </td><td style="padding-bottom: 2.5pt"> </td>
<td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td id="xdx_987_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice_iI_pip0_c20230331__us-gaap--AwardTypeAxis__us-gaap--StockOptionMember_zBBPssqi53Ec" style="border-bottom: Black 2.5pt double; text-align: right" title="Weighted average exercise price, options exercisable">6.49</td><td style="padding-bottom: 2.5pt; text-align: left"> </td><td style="padding-bottom: 2.5pt"> </td>
<td style="border-bottom: Black 2.5pt double; text-align: left"> </td><td style="border-bottom: Black 2.5pt double; text-align: right"><span id="xdx_905_eus-gaap--SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1_dtY_c20230101__20230331__us-gaap--AwardTypeAxis__us-gaap--StockOptionMember_z5Qk7Bq5ZL36" title="Weighted average remaining contractual term, options exercisable">4.40</span></td><td style="padding-bottom: 2.5pt; text-align: left"> </td><td style="padding-bottom: 2.5pt"> </td>
<td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td id="xdx_983_eus-gaap--SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1_iI_pn3n3_c20230331__us-gaap--AwardTypeAxis__us-gaap--StockOptionMember_z1AgnKtgojOc" style="border-bottom: Black 2.5pt double; text-align: right" title="Intrinsic value, options exercisable">2,121</td><td style="padding-bottom: 2.5pt; text-align: left"> </td></tr>
</table>
<p id="xdx_8A3_zL6HMSZqZQW1" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"> </p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in">During the three months ended
March 31, 2023, the Company granted options under the 2017 Plan to purchase approximately <span id="xdx_904_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross_pn3n3_c20230101__20230331_z5L96UAnfbMk" title="Options granted">375</span>,000 shares of its common stock to its employees.
The fair value of these options was approximately $<span id="xdx_903_ecustom--FairValueOfOptionsGranted_pn3n3_dm_c20230101__20230331__us-gaap--AwardTypeAxis__us-gaap--StockOptionMember_z7ZPSO17LXS4" title="Fair value of options granted">1.9</span> million at the time of grant.</p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 27.5pt"> </p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in">The Company issues restricted
stock to employees, directors and consultants and estimates the fair value based on the closing price on the day of grant. The following
table summarizes all restricted stock activity during the three months ended March 31, 2023 (in thousands except per share data): </p>
<table cellpadding="0" cellspacing="0" id="xdx_893_eus-gaap--ScheduleOfOtherShareBasedCompensationActivityTableTextBlock_pn3n3_zFuWfIM7bOR6" style="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse" summary="xdx: Disclosure - STOCK BASED COMPENSATION (Details - Restricted stock)">
<tr style="vertical-align: bottom; background-color: white">
<td><span id="xdx_8BC_zzQLZRaaf2T" style="display: none">Schedule of restricted stock option activity</span> </td>
<td> </td>
<td> </td>
<td style="text-align: right"> </td>
<td> </td>
<td> </td>
<td> </td>
<td style="text-align: right"> </td>
<td> </td></tr>
<tr style="vertical-align: bottom">
<td> </td>
<td> </td>
<td colspan="2" style="border-bottom: black 1pt solid">
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><b>Number of</b></p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><b>Shares</b></p></td>
<td> </td>
<td> </td>
<td colspan="2" style="border-bottom: black 1pt solid">
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><b>Weighted-Average</b></p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><b>Grant Date Fair Value per Share</b></p></td>
<td> </td></tr>
<tr style="vertical-align: bottom; background-color: #EEEEEE">
<td style="width: 68%"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Outstanding at January 1, 2023</span></td>
<td style="width: 1%"> </td>
<td style="width: 1%"> </td>
<td id="xdx_98C_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsOutstandingNumber_iS_pn3n3_c20230101__20230331__us-gaap--AwardTypeAxis__us-gaap--RestrictedStockMember_zJGPdOtybYo9" style="width: 13%; text-align: right" title="Restricted stock outstanding, beginning balance"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">340</span></td>
<td style="width: 1%"> </td>
<td style="width: 1%"> </td>
<td style="width: 1%"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">$</span></td>
<td id="xdx_98F_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue_iS_pip0_c20230101__20230331__us-gaap--AwardTypeAxis__us-gaap--RestrictedStockMember_zpOmBnfVjtce" style="width: 13%; text-align: right" title="Restricted stock outstanding, beginning balance"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">10.78</span></td>
<td style="width: 1%"> </td></tr>
<tr style="vertical-align: bottom; background-color: white">
<td style="padding-left: 10pt"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Granted</span></td>
<td> </td>
<td> </td>
<td id="xdx_98E_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_pn3n3_c20230101__20230331__us-gaap--AwardTypeAxis__us-gaap--RestrictedStockMember_zTz9pG29UrXf" style="text-align: right" title="Restricted stock granted"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">297</span></td>
<td> </td>
<td> </td>
<td><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">$</span></td>
<td id="xdx_982_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue_pip0_c20230101__20230331__us-gaap--AwardTypeAxis__us-gaap--RestrictedStockMember_zzVqFv4r552h" style="text-align: right" title="Restricted stock granted"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">6.56</span></td>
<td> </td></tr>
<tr style="vertical-align: bottom; background-color: #EEEEEE">
<td style="padding-left: 10pt"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Vested</span></td>
<td> </td>
<td style="border-bottom: black 1pt solid"> </td>
<td id="xdx_984_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod_iN_pn3n3_di_c20230101__20230331__us-gaap--AwardTypeAxis__us-gaap--RestrictedStockMember_zTdfFwSdHd07" style="border-bottom: black 1pt solid; text-align: right" title="Restricted stock vested"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">(55</span></td>
<td><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">)</span></td>
<td> </td>
<td><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">$</span></td>
<td id="xdx_98A_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue_pip0_c20230101__20230331__us-gaap--AwardTypeAxis__us-gaap--RestrictedStockMember_zTTPLBpFLlLc" style="text-align: right" title="Restricted stock vested"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">7.62</span></td>
<td> </td></tr>
<tr style="vertical-align: bottom; background-color: white">
<td><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Outstanding non-vested shares at March 31, 2023</span></td>
<td> </td>
<td style="border-bottom: black 2.25pt double"> </td>
<td id="xdx_98C_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsOutstandingNumber_iE_pn3n3_c20230101__20230331__us-gaap--AwardTypeAxis__us-gaap--RestrictedStockMember_z6eahkiBC4W3" style="border-bottom: black 2.25pt double; text-align: right" title="Restricted stock outstanding, ending balance"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">582</span></td>
<td> </td>
<td> </td>
<td style="border-bottom: black 2.25pt double"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">$</span></td>
<td id="xdx_98C_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue_iE_pip0_c20230101__20230331__us-gaap--AwardTypeAxis__us-gaap--RestrictedStockMember_zE3F0Jv06fxg" style="border-bottom: black 2.25pt double; text-align: right" title="Restricted stock outstanding, ending balance"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">8.93</span></td>
<td> </td></tr>
</table>
<p id="xdx_8A6_z8oGKkwWqz4b" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"> </p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in">During the three months ended
March 31, 2023, the Company granted approximately <span id="xdx_904_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_pn3n3_c20230101__20230331_zdF3KoL5e6li" title="Restricted stock granted">297</span>,000 restricted stock awards under the 2017 Plan to its employees and directors.
The fair value of these awards was approximately $<span id="xdx_906_ecustom--FairValueOfRestrictedStockGranted_pn3n3_dm_c20230101__20230331__us-gaap--AwardTypeAxis__us-gaap--RestrictedStockMember_zzQZhgkRyVm8" title="Fair value of restricted stock granted">2.0</span> million at the time of grant.</p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"> </p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in">On February 23, 2023, the
Company’s Board of Directors approved the Atomera Incorporated 2023 Stock Incentive Plan (“2023 Plan”). The 2023 Plan
provides for the grant of non-qualified stock options and incentive stock options to purchase shares of the Company’s common stock
and for the grant of restricted and unrestricted shares. The 2023 Plan, as amended in April 2023, provides for the issuance of <span id="xdx_90A_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized_iI_pn3n3_c20230331__us-gaap--PlanNameAxis__custom--Plan2023Member_zh8r9huw5ON2" title="Shares authorized for issuance">2,000</span>,000
shares of common stock. All of the Company’s employees and any subsidiary employees (including officers and directors who are also
employees), as well as all of the Company’s nonemployee directors and other consultants, advisors and other persons who provide
services to the Company will be eligible to receive incentive awards under the 2023 Plan. The 2023 Plan has been submitted to the stockholders
for approval at the Company’s 2023 annual meeting of stockholders to be held on May 4, 2023.</p>
3750000
<table cellpadding="0" cellspacing="0" id="xdx_89E_eus-gaap--ScheduleOfEmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTextBlock_pn3n3_zj9s4GyBusvh" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%" summary="xdx: Disclosure - STOCK BASED COMPENSATION (Details - Compensation Expense)">
<tr style="vertical-align: bottom">
<td><span id="xdx_8BD_zupHBorgGMG8" style="display: none">Schedule of stock-based compensation expense</span> </td><td> </td>
<td colspan="2" style="text-align: right"> </td><td> </td><td> </td>
<td colspan="2" style="text-align: right"> </td><td> </td></tr>
<tr style="vertical-align: bottom">
<td> </td><td style="padding-bottom: 1pt"> </td>
<td colspan="6" style="border-bottom: Black 1pt solid; text-align: center"><p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><b>Three Months Ended</b></p> <p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><b>March 31,</b></p></td><td style="padding-bottom: 1pt"> </td></tr>
<tr style="vertical-align: bottom">
<td> </td><td style="font-weight: bold; padding-bottom: 1pt"> </td>
<td colspan="2" style="border-bottom: Black 1pt solid; font-weight: bold; text-align: center">2023</td><td style="padding-bottom: 1pt; font-weight: bold"> </td><td style="font-weight: bold; padding-bottom: 1pt"> </td>
<td colspan="2" style="border-bottom: Black 1pt solid; font-weight: bold; text-align: center">2022</td><td style="padding-bottom: 1pt; font-weight: bold"> </td></tr>
<tr style="vertical-align: bottom; background-color: rgb(238,238,238)">
<td style="width: 66%; text-align: left">Research and development</td><td style="width: 2%"> </td>
<td style="width: 1%; text-align: left">$</td><td id="xdx_983_eus-gaap--ShareBasedCompensation_c20230101__20230331__us-gaap--IncomeStatementLocationAxis__us-gaap--ResearchAndDevelopmentExpenseMember_pn3n3" style="width: 13%; text-align: right" title="Allocated stock-based compensation">328</td><td style="width: 1%; text-align: left"> </td><td style="width: 2%"> </td>
<td style="width: 1%; text-align: left">$</td><td id="xdx_985_eus-gaap--ShareBasedCompensation_c20220101__20220331__us-gaap--IncomeStatementLocationAxis__us-gaap--ResearchAndDevelopmentExpenseMember_pn3n3" style="width: 13%; text-align: right" title="Allocated stock-based compensation">244</td><td style="width: 1%; text-align: left"> </td></tr>
<tr style="vertical-align: bottom; background-color: White">
<td style="text-align: left">General and administrative</td><td> </td>
<td style="text-align: left"> </td><td id="xdx_983_eus-gaap--ShareBasedCompensation_c20230101__20230331__us-gaap--IncomeStatementLocationAxis__us-gaap--GeneralAndAdministrativeExpenseMember_pn3n3" style="text-align: right" title="Allocated stock-based compensation">525</td><td style="text-align: left"> </td><td> </td>
<td style="text-align: left"> </td><td id="xdx_981_eus-gaap--ShareBasedCompensation_c20220101__20220331__us-gaap--IncomeStatementLocationAxis__us-gaap--GeneralAndAdministrativeExpenseMember_pn3n3" style="text-align: right" title="Allocated stock-based compensation">429</td><td style="text-align: left"> </td></tr>
<tr style="vertical-align: bottom; background-color: rgb(238,238,238)">
<td style="text-align: left; padding-bottom: 1pt">Selling and Marketing</td><td style="padding-bottom: 1pt"> </td>
<td style="border-bottom: Black 1pt solid; text-align: left"> </td><td id="xdx_98B_eus-gaap--ShareBasedCompensation_c20230101__20230331__us-gaap--IncomeStatementLocationAxis__custom--SellingAndMarketingMember_pn3n3" style="border-bottom: Black 1pt solid; text-align: right" title="Allocated stock-based compensation">74</td><td style="padding-bottom: 1pt; text-align: left"> </td><td style="padding-bottom: 1pt"> </td>
<td style="border-bottom: Black 1pt solid; text-align: left"> </td><td id="xdx_989_eus-gaap--ShareBasedCompensation_c20220101__20220331__us-gaap--IncomeStatementLocationAxis__custom--SellingAndMarketingMember_pn3n3" style="border-bottom: Black 1pt solid; text-align: right" title="Allocated stock-based compensation">53</td><td style="padding-bottom: 1pt; text-align: left"> </td></tr>
<tr style="vertical-align: bottom; background-color: White">
<td style="padding-left: 10pt; padding-bottom: 2.5pt">Total</td><td style="padding-bottom: 2.5pt"> </td>
<td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td id="xdx_981_eus-gaap--ShareBasedCompensation_c20230101__20230331_pn3n3" style="border-bottom: Black 2.5pt double; text-align: right" title="Allocated stock-based compensation">927</td><td style="padding-bottom: 2.5pt; text-align: left"> </td><td style="padding-bottom: 2.5pt"> </td>
<td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td id="xdx_986_eus-gaap--ShareBasedCompensation_pn3n3_c20220101__20220331_zVProDVGTAg6" style="border-bottom: Black 2.5pt double; text-align: right" title="Allocated stock-based compensation">726</td><td style="padding-bottom: 2.5pt; text-align: left"> </td></tr>
</table>
328000
244000
525000
429000
74000
53000
927000
726000
9200000
P2Y10M24D
4.95
10.60
<table cellpadding="0" cellspacing="0" id="xdx_898_eus-gaap--ScheduleOfStockOptionsRollForwardTableTextBlock_pn3n3_zop5HQkyP9M5" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%" summary="xdx: Disclosure - STOCK BASED COMPENSATION (Details - Stock Option Activity)">
<tr style="vertical-align: bottom">
<td><span id="xdx_8BE_zfETfemmKERe" style="display: none">Schedule of stock option activity</span> </td><td> </td><td> </td>
<td colspan="2" style="text-align: right"> </td><td> </td><td> </td>
<td colspan="2" style="text-align: right"> </td><td> </td><td> </td>
<td colspan="2" style="text-align: right"> </td><td> </td><td> </td>
<td colspan="2" style="text-align: right"> </td><td> </td></tr>
<tr style="vertical-align: bottom">
<td> </td><td style="padding-bottom: 1pt"> </td><td style="padding-bottom: 1pt"> </td>
<td colspan="2" style="border-bottom: Black 1pt solid; text-align: center"><p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><b>Number of</b></p> <p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><b>Shares</b></p></td><td style="padding-bottom: 1pt"> </td><td style="padding-bottom: 1pt"> </td>
<td colspan="2" style="border-bottom: Black 1pt solid; text-align: center"><p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><b>Weighted-</b></p> <p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><b>Average</b></p> <p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><b>Exercise</b></p> <p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><b>Prices per Share</b></p></td><td style="padding-bottom: 1pt"> </td><td style="padding-bottom: 1pt"> </td>
<td colspan="2" style="border-bottom: Black 1pt solid; text-align: center"><p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><b>Weighted-<br/> Average</b></p> <p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><b>Remaining</b></p> <p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><b>Contractual</b></p> <p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><b>Term (In Years)</b></p></td><td style="padding-bottom: 1pt"> </td><td style="font-weight: bold; padding-bottom: 1pt"> </td>
<td colspan="2" style="border-bottom: Black 1pt solid; font-weight: bold; text-align: center">Intrinsic <br/> Value</td><td style="padding-bottom: 1pt; font-weight: bold"> </td></tr>
<tr style="vertical-align: bottom; background-color: rgb(238,238,238)">
<td style="width: 39%; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Outstanding at January 1, 2023</span></td><td style="width: 1%; text-align: left"> </td><td style="width: 2%"> </td>
<td style="width: 1%; text-align: left"> </td><td id="xdx_98C_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber_iS_pn3n3_c20230101__20230331__us-gaap--AwardTypeAxis__us-gaap--StockOptionMember_zR4jAmiPnjJ6" style="width: 11%; text-align: right" title="Options outstanding, beginning balance">3,009</td><td style="width: 1%; text-align: left"> </td><td style="width: 2%"> </td>
<td style="width: 1%; text-align: left">$</td><td id="xdx_985_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice_iS_pip0_c20230101__20230331__us-gaap--AwardTypeAxis__us-gaap--StockOptionMember_zL5I24CNbHh9" style="width: 11%; text-align: right" title="Weighted average exercise price, options outstanding beginning balance">7.07</td><td style="width: 1%; text-align: left"> </td><td style="width: 2%"> </td>
<td style="width: 1%; text-align: left"> </td><td style="width: 11%; text-align: right"> </td><td style="width: 1%; text-align: left"> </td><td style="width: 2%"> </td>
<td style="width: 1%; text-align: left"> </td><td style="width: 11%; text-align: right"> </td><td style="width: 1%; text-align: left"> </td></tr>
<tr style="vertical-align: bottom; background-color: White">
<td style="padding-left: 10pt; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Granted</span></td><td style="text-align: left"> </td><td> </td>
<td style="text-align: left"> </td><td id="xdx_98A_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross_pn3n3_c20230101__20230331__us-gaap--AwardTypeAxis__us-gaap--StockOptionMember_zNS98kM0Qhs6" style="text-align: right" title="Options granted">375</td><td style="text-align: left"> </td><td> </td>
<td style="text-align: left">$</td><td id="xdx_981_eus-gaap--ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice_pip0_c20230101__20230331__us-gaap--AwardTypeAxis__us-gaap--StockOptionMember_zuQChj90eGG6" style="text-align: right" title="Weighted average exercise price, options granted">6.56</td><td style="text-align: left"> </td><td> </td>
<td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td><td> </td>
<td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td></tr>
<tr style="vertical-align: bottom; background-color: rgb(238,238,238)">
<td style="padding-left: 10pt; padding-bottom: 1pt; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Exercised</span></td><td style="padding-bottom: 1pt; text-align: left"> </td><td style="padding-bottom: 1pt"> </td>
<td style="border-bottom: Black 1pt solid; text-align: left"> </td><td id="xdx_981_eus-gaap--StockIssuedDuringPeriodSharesStockOptionsExercised_iN_pn3n3_di_c20230101__20230331__us-gaap--AwardTypeAxis__us-gaap--StockOptionMember_zOn04Dzzg3wa" style="border-bottom: Black 1pt solid; text-align: right" title="Options exercised">(10</td><td style="padding-bottom: 1pt; text-align: left">)</td><td style="padding-bottom: 1pt"> </td>
<td style="padding-bottom: 1pt; text-align: left">$</td><td id="xdx_98D_eus-gaap--ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice_pip0_c20230101__20230331__us-gaap--AwardTypeAxis__us-gaap--StockOptionMember_zPzalKC4osj9" style="padding-bottom: 1pt; text-align: right" title="Weighted average exercise price, options exercised">3.90</td><td style="padding-bottom: 1pt; text-align: left"> </td><td style="padding-bottom: 1pt"> </td>
<td style="padding-bottom: 1pt; text-align: left"> </td><td style="padding-bottom: 1pt; text-align: right"> </td><td style="padding-bottom: 1pt; text-align: left"> </td><td style="padding-bottom: 1pt"> </td>
<td style="padding-bottom: 1pt; text-align: left"> </td><td style="padding-bottom: 1pt; text-align: right"> </td><td style="padding-bottom: 1pt; text-align: left"> </td></tr>
<tr style="vertical-align: bottom; background-color: White">
<td style="padding-bottom: 2.5pt; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Outstanding at March 31, 2023</span></td><td style="padding-bottom: 2.5pt; text-align: left"> </td><td style="padding-bottom: 2.5pt"> </td>
<td style="border-bottom: Black 2.5pt double; text-align: left"> </td><td id="xdx_982_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber_iE_pn3n3_c20230101__20230331__us-gaap--AwardTypeAxis__us-gaap--StockOptionMember_z30duaHu0Ap" style="border-bottom: Black 2.5pt double; text-align: right" title="Options outstanding, ending balance">3,374</td><td style="padding-bottom: 2.5pt; text-align: left"> </td><td style="padding-bottom: 2.5pt"> </td>
<td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td id="xdx_988_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice_iE_pip0_c20230101__20230331__us-gaap--AwardTypeAxis__us-gaap--StockOptionMember_zw3RBqBBLE37" style="border-bottom: Black 2.5pt double; text-align: right" title="Weighted average exercise price, options outstanding, ending balance">7.02</td><td style="padding-bottom: 2.5pt; text-align: left"> </td><td style="padding-bottom: 2.5pt"> </td>
<td style="border-bottom: Black 2.5pt double; text-align: left"> </td><td style="border-bottom: Black 2.5pt double; text-align: right"><span id="xdx_90C_eus-gaap--SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2_dtY_c20230101__20230331__us-gaap--AwardTypeAxis__us-gaap--StockOptionMember_zMaIr4xfZUWj" title="Weighted average remaining contractual term, options outstanding">5.38</span></td><td style="padding-bottom: 2.5pt; text-align: left"> </td><td style="padding-bottom: 2.5pt"> </td>
<td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td id="xdx_980_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue_iI_pn3n3_c20230331__us-gaap--AwardTypeAxis__us-gaap--StockOptionMember_zqYR90CcrqKc" style="border-bottom: Black 2.5pt double; text-align: right" title="Intrinsic value, options outstanding ending balance">2,430</td><td style="padding-bottom: 2.5pt; text-align: left"> </td></tr>
<tr style="vertical-align: bottom; background-color: rgb(238,238,238)">
<td style="padding-bottom: 2.5pt; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Exercisable at March 31, 2023</span></td><td style="padding-bottom: 2.5pt; text-align: left"> </td><td style="padding-bottom: 2.5pt"> </td>
<td style="border-bottom: Black 2.5pt double; text-align: left"> </td><td id="xdx_984_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber_iI_pn3n3_c20230331__us-gaap--AwardTypeAxis__us-gaap--StockOptionMember_zV30M3nxWi7b" style="border-bottom: Black 2.5pt double; text-align: right" title="Options exercisable">2,649</td><td style="padding-bottom: 2.5pt; text-align: left"> </td><td style="padding-bottom: 2.5pt"> </td>
<td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td id="xdx_987_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice_iI_pip0_c20230331__us-gaap--AwardTypeAxis__us-gaap--StockOptionMember_zBBPssqi53Ec" style="border-bottom: Black 2.5pt double; text-align: right" title="Weighted average exercise price, options exercisable">6.49</td><td style="padding-bottom: 2.5pt; text-align: left"> </td><td style="padding-bottom: 2.5pt"> </td>
<td style="border-bottom: Black 2.5pt double; text-align: left"> </td><td style="border-bottom: Black 2.5pt double; text-align: right"><span id="xdx_905_eus-gaap--SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1_dtY_c20230101__20230331__us-gaap--AwardTypeAxis__us-gaap--StockOptionMember_z5Qk7Bq5ZL36" title="Weighted average remaining contractual term, options exercisable">4.40</span></td><td style="padding-bottom: 2.5pt; text-align: left"> </td><td style="padding-bottom: 2.5pt"> </td>
<td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td id="xdx_983_eus-gaap--SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1_iI_pn3n3_c20230331__us-gaap--AwardTypeAxis__us-gaap--StockOptionMember_z1AgnKtgojOc" style="border-bottom: Black 2.5pt double; text-align: right" title="Intrinsic value, options exercisable">2,121</td><td style="padding-bottom: 2.5pt; text-align: left"> </td></tr>
</table>
3009000
7.07
375000
6.56
10000
3.90
3374000
7.02
P5Y4M17D
2430000
2649000
6.49
P4Y4M24D
2121000
375000
1900000
<table cellpadding="0" cellspacing="0" id="xdx_893_eus-gaap--ScheduleOfOtherShareBasedCompensationActivityTableTextBlock_pn3n3_zFuWfIM7bOR6" style="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse" summary="xdx: Disclosure - STOCK BASED COMPENSATION (Details - Restricted stock)">
<tr style="vertical-align: bottom; background-color: white">
<td><span id="xdx_8BC_zzQLZRaaf2T" style="display: none">Schedule of restricted stock option activity</span> </td>
<td> </td>
<td> </td>
<td style="text-align: right"> </td>
<td> </td>
<td> </td>
<td> </td>
<td style="text-align: right"> </td>
<td> </td></tr>
<tr style="vertical-align: bottom">
<td> </td>
<td> </td>
<td colspan="2" style="border-bottom: black 1pt solid">
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><b>Number of</b></p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><b>Shares</b></p></td>
<td> </td>
<td> </td>
<td colspan="2" style="border-bottom: black 1pt solid">
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><b>Weighted-Average</b></p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><b>Grant Date Fair Value per Share</b></p></td>
<td> </td></tr>
<tr style="vertical-align: bottom; background-color: #EEEEEE">
<td style="width: 68%"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Outstanding at January 1, 2023</span></td>
<td style="width: 1%"> </td>
<td style="width: 1%"> </td>
<td id="xdx_98C_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsOutstandingNumber_iS_pn3n3_c20230101__20230331__us-gaap--AwardTypeAxis__us-gaap--RestrictedStockMember_zJGPdOtybYo9" style="width: 13%; text-align: right" title="Restricted stock outstanding, beginning balance"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">340</span></td>
<td style="width: 1%"> </td>
<td style="width: 1%"> </td>
<td style="width: 1%"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">$</span></td>
<td id="xdx_98F_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue_iS_pip0_c20230101__20230331__us-gaap--AwardTypeAxis__us-gaap--RestrictedStockMember_zpOmBnfVjtce" style="width: 13%; text-align: right" title="Restricted stock outstanding, beginning balance"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">10.78</span></td>
<td style="width: 1%"> </td></tr>
<tr style="vertical-align: bottom; background-color: white">
<td style="padding-left: 10pt"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Granted</span></td>
<td> </td>
<td> </td>
<td id="xdx_98E_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_pn3n3_c20230101__20230331__us-gaap--AwardTypeAxis__us-gaap--RestrictedStockMember_zTz9pG29UrXf" style="text-align: right" title="Restricted stock granted"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">297</span></td>
<td> </td>
<td> </td>
<td><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">$</span></td>
<td id="xdx_982_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue_pip0_c20230101__20230331__us-gaap--AwardTypeAxis__us-gaap--RestrictedStockMember_zzVqFv4r552h" style="text-align: right" title="Restricted stock granted"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">6.56</span></td>
<td> </td></tr>
<tr style="vertical-align: bottom; background-color: #EEEEEE">
<td style="padding-left: 10pt"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Vested</span></td>
<td> </td>
<td style="border-bottom: black 1pt solid"> </td>
<td id="xdx_984_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod_iN_pn3n3_di_c20230101__20230331__us-gaap--AwardTypeAxis__us-gaap--RestrictedStockMember_zTdfFwSdHd07" style="border-bottom: black 1pt solid; text-align: right" title="Restricted stock vested"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">(55</span></td>
<td><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">)</span></td>
<td> </td>
<td><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">$</span></td>
<td id="xdx_98A_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue_pip0_c20230101__20230331__us-gaap--AwardTypeAxis__us-gaap--RestrictedStockMember_zTTPLBpFLlLc" style="text-align: right" title="Restricted stock vested"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">7.62</span></td>
<td> </td></tr>
<tr style="vertical-align: bottom; background-color: white">
<td><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Outstanding non-vested shares at March 31, 2023</span></td>
<td> </td>
<td style="border-bottom: black 2.25pt double"> </td>
<td id="xdx_98C_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsOutstandingNumber_iE_pn3n3_c20230101__20230331__us-gaap--AwardTypeAxis__us-gaap--RestrictedStockMember_z6eahkiBC4W3" style="border-bottom: black 2.25pt double; text-align: right" title="Restricted stock outstanding, ending balance"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">582</span></td>
<td> </td>
<td> </td>
<td style="border-bottom: black 2.25pt double"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">$</span></td>
<td id="xdx_98C_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue_iE_pip0_c20230101__20230331__us-gaap--AwardTypeAxis__us-gaap--RestrictedStockMember_zE3F0Jv06fxg" style="border-bottom: black 2.25pt double; text-align: right" title="Restricted stock outstanding, ending balance"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">8.93</span></td>
<td> </td></tr>
</table>
340000
10.78
297000
6.56
55000
7.62
582000
8.93
297000
2000000.0
2000000
<p id="xdx_80C_eus-gaap--CommitmentsAndContingenciesDisclosureTextBlock_zAmTfTc0yAVc" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"> </p>
<table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<tr style="vertical-align: top">
<td style="width: 48px"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>9.</b></span></td>
<td style="text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b><span id="xdx_823_zGtlg6kaQdNl">COMMITMENTS AND CONTINGENCIES</span> </b></span></td></tr>
</table>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"> </p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><i>Litigation, Claims and Assessments</i></p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"> </p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in">The Company may be subject
to periodic lawsuits, investigations and claims that arise in the ordinary course of business. The Company is not party to any material
litigation as of March 31, 2023, or through the date these financial statements have been issued.</p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"> </p>
<p id="xdx_800_eus-gaap--SubsequentEventsTextBlock_zh9Zm36Cm3c5" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"> </p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"/>
<table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<tr style="vertical-align: top">
<td style="width: 48px"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>10.</b></span></td>
<td style="text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b><span id="xdx_827_z8UcMkRvnLqh">SUBSEQUENT EVENTS</span> </b></span></td></tr>
</table>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"> </p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"/>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in">Management has evaluated subsequent
events and transactions through the date these financial statements were issued.</p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><b> </b></p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">Since March 31, 2023 the Company has issued an
additional 82,322 shares through its ATM offering at an average price per share of $5.73 resulting in additional net proceeds of approximately
$458,000.</p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"> </p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in">On April 17, 2023 the Company
amended the lease agreement related to its office space in Tempe, Arizona to add 404 square feet to its existing office lease effective
on May 1, 2023 through February 28, 2026 (coterminous with the current Tempe lease) and will bring the total leased office space in Tempe
to 878 square feet.</p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"> </p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><i>License Agreement. </i>On April 26, 2023,
the Company announced the execution of a commercial license agreement with STMicroelectronics (“ST”). This agreement enables
ST to install the Company’s Mears Silicon Technology™, or MST<sup>®</sup>, in its facilities and authorizes ST to manufacture
and distribute MST-enabled products to its customers. The license agreement with ST provides for license fees payable upon reaching <span style="color: #212121">milestones
consistent with Atomera’s standard business model.</span> After those milestones are reached, ST will pay a royalty to Atomera
based on the number of MST-enabled products manufactured for commercial purposes.</p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><b> </b></p>