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STOCK-BASED COMPENSATION PLANS (Details) - Restricted Stock - USD ($) | 3 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | ---
Sep. 30, 2021 | Sep. 30, 2020 | Sep. 30, 2021 | Sep. 30, 2020 | Dec. 31, 2021
Stock-based compensation expense | $ 345,000 | $ 248,000 | $ 970,000 | $ 672,000 |
Forecast |  |  |  |  |
Stock-based compensation expense |  |  |  |  | $ 1,314,000
Stock Incentive Plan |  |  |  |  |
Vesting period |  |  | 3 years |  |
Independent Directors Stock Incentive Plan |  |  |  |  |
Vesting period |  |  | 1 year |  |

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