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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES -Share Based Compensation (Details) - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended
Mar. 31, 2022
Mar. 31, 2021
Dec. 31, 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Stock-based compensation $ 1,495 $ 1,690  
Restricted Stock      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Shares of unvested restricted stock outstanding (in shares) 943,386   952,971
Weighted average grant date fair value of stock grants per share (in dollars per share) $ 5.74    
Unrecognized compensation cost related to unvested restricted stock $ 3,100    
Period in which compensation cost expected to be recognized 1 year 7 months 6 days    
PSUs      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Period in which compensation cost expected to be recognized 1 year 6 months    
Number of performance stock units ("PSUs") outstanding (in shares) 1,049,910    
Weighted average grant date fair value of PSUs per unit (in dollars per share) $ 8.11    
Minimum final number of shares of common stock issuable based on performance multiplier (in shares) 0    
Maximum final number of shares of common stock issuable based on performance multiplier (in shares) 2,099,820    
Unrecognized expense, performance share units $ 2,700    
General and Administrative Expense      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Stock-based compensation $ 1,500 $ 1,700