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STOCK-BASED COMPENSATION (Details) $ / shares in Units, $ in Millions |  | 1 Months Ended | 12 Months Ended
--- | --- | --- | ---
May 19, 2021 shares | May 31, 2021 item shares | Jan. 31, 2021 shares | May 31, 2017 shares | Dec. 31, 2021 USD ($) $ / shares shares | Dec. 31, 2020 $ / shares | Dec. 31, 2019 $ / shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Weighted average grant date fair value of stock options (in dollars per share) | $ / shares |  |  |  |  | $ 5.68 | $ 0.95 | $ 0.94
Stock options |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Weighted average exercise price, Options exercisable (in dollars per share) | $ / shares |  |  |  |  | $ 1.67 |  |
Number of stock options granted (in shares) |  |  |  |  | 315,620 |  |
Unrecognized compensation cost | $ |  |  |  |  | $ 1.5 |  |
Weighted-average period of unrecognized compensation cost expected to be recognized |  |  |  |  | 2 years 1 month 6 days |  |
Restricted and performance shares |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Unrecognized compensation cost | $ |  |  |  |  | $ 0.5 |  |
Weighted-average period of unrecognized compensation cost expected to be recognized |  |  |  |  | 1 year 3 months 18 days |  |
2015 Equity Incentive Plan |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Shares authorized for issuance | 4,500,000 |  |  | 2,500,000 |  |  |
Award terms |  |  |  | 10 years |  |  |
Increase in number of shares available for issuance | 2,000,000 |  |  |  |  |  |
Number of shares available for future issuance (in shares) |  |  |  |  | 1,740,478 |  |
2015 Equity Incentive Plan | Restricted stock |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Vesting period of remaining shares | 1 year |  |  |  |  |  |
Shares granted | 31,512 |  |  |  |  |  |
2015 Equity Incentive Plan | Performance shares | Tranche One |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Vesting rights, percentage |  |  |  |  | 33.33% |  |
2015 Equity Incentive Plan | Chief Executive Officer | Performance shares |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Shares granted |  |  | 69,975 |  |  |  |
2015 Equity Incentive Plan | Three Company Executives | Performance shares |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Shares granted |  | 20,750 |  |  |  |  |
Number Of Executives | item |  | 3 |  |  |  |  |

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