Document and Entity Information - shares
6 Months Ended
Jun. 30, 2018
Aug. 08, 2018
Document And Entity Information    
Entity Registrant Name Atomera Inc  
Entity Central Index Key 0001420520  
Document Type 10-Q  
Trading Symbol ATOM  
Document Period End Date Jun. 30, 2018  
Amendment Flag false  
Current Fiscal Year End Date --12-31  
Entity a Well-known Seasoned Issuer No  
Entity a Voluntary Filer No  
Entity's Reporting Status Current Yes  
Entity Filer Category Smaller Reporting Company  
Entity Common Stock, Shares Outstanding   12,408,525
Document Fiscal Period Focus Q2  
Document Fiscal Year Focus 2018  
Entity Small Business true  
Entity Emerging Growth Company true