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STOCK-BASED COMPENSATION PLANS - Additional information (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jun. 30, 2022 | Jun. 30, 2021 | Mar. 31, 2021 | Jun. 30, 2022 | Jun. 30, 2021 | Jun. 30, 2017
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost |  |  |  |  |  |
Number of Shares, Granted | 200,000 | 0 |  | 200,000 | 0 |
Stock options outstanding | 816,000 |  |  | 816,000 |  |
Exercisable Number of Options | 557,000 |  |  | 557,000 |  |
Unrecognized compensation expense related to stock options | $ 5.1 |  |  | $ 5.1 |  |
Weighted-average period of unrecognized compensation expense related to stock options |  |  |  | 2 years 6 months |  |
Restricted Stock |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost |  |  |  |  |  |
Restricted stock were granted |  |  |  | 93,000 |  |
Maximum | Management | Restricted Stock |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost |  |  |  |  |  |
Shares Vesting period |  |  |  | 4 years |  |
Minimum | Management | Restricted Stock |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost |  |  |  |  |  |
Shares Vesting period |  |  |  | 2 years |  |
2017 Stock Option Plan |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost |  |  |  |  |  |
Shares Vesting period |  |  |  | 4 years |  |
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized |  |  |  |  |  | 5,500,000
Number of Shares, Granted | 200,000 |  | 0 | 200,000 | 0 |
Stock options outstanding | 603,000 |  |  | 603,000 |  |
Exercisable Number of Options | 344,000 |  |  | 344,000 |  |
2017 Stock Option Plan | Management | Restricted Stock |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost |  |  |  |  |  |
Restricted stock were granted | 45,000 | 33,000 |  | 93,000 | 104,500 |
Proceeds from Stock Options Exercised |  | $ 0.1 |  | $ 0.1 | $ 0.1 |
2017 Stock Option Plan | Board Of Directors | Restricted Stock |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost |  |  |  |  |  |
Shares Vesting period |  |  |  | 3 years |  |
2005 Stock Option Plan |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost |  |  |  |  |  |
Stock options outstanding | 213,000 |  |  | 213,000 |  |
Exercisable Number of Options | 213,000 |  |  | 213,000 |  |

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