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SHARE-BASED PAYMENTS - Schedule of Share-based Compensation, Restricted Stock and Restricted Stock Units Activity (Details) - USD ($) $ / shares in Units, $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2020 | Mar. 31, 2019 | Dec. 31, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Net of Forfeitures | 566,102 |  | 296,450
Share-based Payment Arrangement, Expense | $ 1,000 | $ 1,120 |
R S U Weighted |  |  |
Number of Shares |  |  |
Number of nonvested shares, beginning of period (in shares) | 1,315,536 |  |
Granted, nonvested, number of shares (in shares) | 735,146 |  |
Vested, number of shares (in shares) | (746,477) |  |
Nonvested options forfeited, number of shares (in shares) | 0 |  |
Number of nonvested shares, end of period (in shares) | 1,304,205 |  | 1,315,536
Weighted Average Grant Date Fair Value |  |  |
Nonvested, weighted average grant date fair value, beginning of period (in dollars per share) | $ 2.45 |  |
Granted, nonvested, weighted average grant date fair value (in dollars per share) | 1.66 |  |
Vested, weighted average grant date fair value (in dollars per share) | 2.46 |  |
Nonvested options forfeited, weighted average grant date fair value (in dollars per share) | 0.00 |  |
Nonvested, weighted average grant date fair value, end of period (in dollars per share) | $ 2.01 |  | $ 2.45
Restricted Stock Units (RSUs) |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Net of Forfeitures | 740,000 | 720,000 |

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