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STOCK-BASED COMPENSATION - NARRATIVE (Details) - USD ($)
3 Months Ended 9 Months Ended
Sep. 30, 2019
Sep. 30, 2018
Sep. 30, 2019
Sep. 30, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Stock based compensation $ 543,000 $ 489,000 $ 2,594,000 $ 1,238,000
Shares surrendered in period (in shares) 26,572 532,477 118,170 576,135
Shares issued on net settlement of stock options (in shares) 34,928 680,388 220,879 713,980
Stock-based compensation expense to be recognized $ 94,000   $ 94,000  
Stock Option | 2019 Share Incentive Plan        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Shares registered (in shares) 2,000,000   2,000,000  
Restricted Stock        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Grants to date (in shares) 225,922   225,922  
Shares vested to date (in shares) 135,555   135,555