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SHARE-BASED COMPENSATION, STOCK OPTIONS, AND RESTRICTED SECURITIES (Details) - USD ($)
$ in Thousands
12 Months Ended
Jul. 16, 2021
Dec. 31, 2021
Dec. 31, 2020
Sep. 30, 2021
Aug. 04, 2020
Jan. 31, 2020
Apr. 30, 2015
Stock options              
Granted (in shares)     360,000        
Expected term   10 years          
Aggregate number of shares reserved for issuance   14,442,343          
Vesting period   48 months          
Stock-based compensation (in dollars)   $ 315 $ 215        
Stock Options              
Stock options              
Granted (in shares)   360,000 0        
Aggregate number of shares reserved for issuance   364,005          
Stock-based compensation (in dollars)   $ 219 $ 117        
RSU              
Stock options              
Vesting period   3 years          
Stock-based compensation (in dollars)   $ 96 $ 98        
2010 Plan              
Stock options              
Expected term   10 years          
2015 Plan              
Stock options              
Shares available for future grants   2,767,436   2,767,436      
Shares authorized for issuance   1,292,801     400,000 26,667 5,333
Expected term   10 years          
Increase in shares of common stock reserved for issuance (in shares) 2,700,000