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SHARE-BASED COMPENSATION (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2022
Jun. 30, 2021
Jun. 30, 2022
Jun. 30, 2021
Stock options        
Expected term     10 years  
Vesting period     48 months  
Stock-based compensation (in dollars) $ 17 $ 95 $ 73 $ 147
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Granted     0  
Stock Options        
Stock options        
Stock-based compensation (in dollars) 29 70 $ 77 98
Restricted Securities        
Stock options        
Vesting period     3 years  
Stock-based compensation (in dollars) $ 11 $ 25 $ 4 $ 49
2010 Plan        
Stock options        
Expected term     10 years  
2015 Plan        
Stock options        
Shares available for future grants 111,283   111,283  
Shares authorized for issuance 31,696   31,696  
Expected term     10 years