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STOCK-BASED COMPENSATION - 2015 EIP Stock Options and Other (Details) - 2015 EIP Plan - Stock Options - USD ($) $ / shares in Units, $ in Thousands |  | 3 Months Ended | 9 Months Ended
--- | --- | --- | ---
Feb. 23, 2021 | Sep. 30, 2022 | Sep. 30, 2021 | Sep. 30, 2022 | Sep. 30, 2021
Unrecognized compensation cost |  |  |  |  |
Unamortized compensation cost |  | $ 145 |  | $ 145 |
Future amortization of stock based compensation |  |  |  |  |
Remainder of 2022 |  | 56 |  | 56 |
2023 |  | 81 |  | 81 |
2024 |  | $ 8 |  | $ 8 |
Number of Options |  |  |  |  |
Outstanding at beginning of period (in shares) |  |  |  | 916,287 |
Granted (in shares) | 118,552 |  |  |  |
Exercised (in shares) |  |  |  | (501,060) |
Outstanding at end of period (in shares) |  | 415,227 |  | 415,227 |
Weighted Average Exercise Price |  |  |  |  |
Outstanding at beginning of period (in dollars per share) |  |  |  | $ 9.02 |
Granted (in dollars per share) | $ 9.91 |  |  |  |
Exercised (in dollars per share) |  |  |  | 9.94 |
Outstanding at end of period (in dollars per share) |  | $ 7.91 |  | 7.91 |
Weighted Average Fair Value |  |  |  |  |
Outstanding at beginning of period (in dollars per share) |  |  |  | 4.08 |
Exercised (in dollars per share) |  |  |  | 5.16 |
Outstanding at end of period (in dollars per share) |  | $ 2.78 |  | $ 2.78 |
Options outstanding and unvested |  | 193,891 |  | 193,891 |
Weighted Average Exercise Price Of Outstanding and Unvested Options |  |  |  | $ 8.22 |
Options Outstanding and Unvested, Weighted Average Remaining Contractual Life |  |  |  | 3 years 9 months 21 days |
Options Exercisable, Number of options |  | 221,336 |  | 221,336 |
Options Exercisable, Weighted Average Exercise Price |  | $ 7.63 |  | $ 7.63 |
Options Exercisable, Weighted Average Fair Value (in dollars per share) |  |  |  | $ 2.63 |
Options Exercisable, Weighted Average Remaining Contractual Life |  |  |  | 3 years 4 months 20 days |
Stock options outstanding |  | 415,227 |  | 415,227 |
General and Administrative Expense |  |  |  |  |
Stock options |  |  |  |  |
Amortization expense |  | $ 55 | $ 152 | $ 223 | $ 483

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