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STOCKHOLDERS' EQUITY AND EARNINGS PER SHARE - Summary of Stock Activity (Details) - USD ($)
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]      
Shares, outstanding, beginning balance 1,102,627 1,055,497  
Shares, granted 117,449 110,979  
Shares, exercised or vested 0 0  
Shares, forfeited or expired (67,715) (63,849)  
Shares, outstanding, ending balance 1,152,361 1,102,627 1,055,497
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract]      
Exercise Price Per Share, outstanding, beginning balance $ 5.25 $ 6.74  
Exercise Price Per Share, granted 2.69 2.42  
Exercise Price Per Share, exercised or vested (0.00) (0.00)  
Exercise Price Per Share, forfeited or expired (6.77) (6.52)  
Exercise Price Per Share, outstanding, ending balance $ 6.15 $ 5.25 $ 6.74
Remaining Contractual Term, outstanding 1 year 7 months 17 days 3 months 18 days 3 days
Share-based Compensation Arrangement by Share-based Payment Award, Options, Aggregate Intrinsic Value [Abstract]      
Aggregate Intrinsic Value, outstanding, beginning balance $ 0 $ 0  
Aggregate Intrinsic Value, granted 0 0  
Aggregate Intrinsic Value, exercised or vested 0 0  
Aggregate Intrinsic Value, forfeited or expired 0 0  
Aggregate Intrinsic Value, outstanding, ending balance $ 0 $ 0 $ 0
Restricted Stock      
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]      
Shares, outstanding, beginning balance 523,754 791,510  
Shares, granted 443,372 249,496  
Shares, exercised or vested (332,722) (517,252)  
Shares, forfeited or expired (82,176) 0  
Shares, outstanding, ending balance 552,228 523,754 791,510