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STOCK-BASED COMPENSATION Restricted Stock Units with Performance Conditions (Details) - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended
Mar. 31, 2020
Mar. 31, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Stock-based compensation (Note 16) $ 939 $ 1,003
Document Period End Date Mar. 31, 2020  
Performance Shares    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Share-based Payment Arrangement, Nonvested Award, Excluding Option, Cost Not yet Recognized, Amount $ 200  
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Aggregate Intrinsic Value, Nonvested 1,600  
Unrecognized compensation expense $ 1,400  
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition 12 months  
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]    
Unvested at December 31, 2019 501,572  
Weighted-Average Grant Date Fair Value:    
Unvested at March 31, 2020 $ 3.19  
Maximum [Member]    
Weighted-Average Grant Date Fair Value:    
Maximum achievement 200.00%