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STOCK-BASED COMPENSATION Stock-Based Compensation (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2020
Mar. 31, 2019
May 24, 2016
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Common Stock, Capital Shares Reserved for Future Issuance     240,000
Common stock reserved for issuance to participants 55,765    
Restricted stock units      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Stock-based compensation $ 144 $ 184  
Non-Employee Director | Restricted stock units      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Outstanding, Number 141,412