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STOCK-BASED COMPENSATION PLANS - Additional information (Details) - USD ($)
$ / shares in Units, shares in Thousands, $ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2020
Jun. 30, 2019
Jun. 30, 2020
Jun. 30, 2019
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost        
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number 1,153   1,153  
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Number 593   593  
Weighted Average Exercise Price, Granted     $ 10.15 $ 4.53
Proceeds from Stock Options Exercised $ 0.1 $ 0.1 $ 0.3 $ 0.1
Unrecognized compensation expense related to stock options $ 3.9   $ 3.9  
Weighted-average period of unrecognized compensation expense related to stock options     2 years 4 months 24 days  
Weighted-average grant date fair value of options granted (in dollars per share) $ 8.88     $ 4.01
Restricted Stock [Member]        
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost        
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period     208 10,000
2017 Stock Option Plan        
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost        
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number 709   709  
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Number 164   164  
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized 5,000,000   5,000,000  
Number of Warrants, Granted 0 35,000 14,000 400
2017 Stock Option Plan | Employee Stock Option [Member]        
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost        
Number of Warrants, Granted     14,000 415,000
2017 Stock Option Plan | Restricted Stock [Member]        
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost        
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period 38,000   208,000  
2017 Stock Option Plan | Management [Member] | Restricted Stock [Member]        
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost        
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period 38,000 5,000 208,000 10,000