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STOCK-BASED COMPENSATION - Board of directors common stock award (Details) - USD ($) | Oct. 11, 2023 | Sep. 15, 2022
--- | --- | ---
Service-based restricted stock two |  |
STOCK-BASED COMPENSATION |  |
Fair value estimated on grant date | $ 177,750 |
2016 Plan | Service-based restricted stock one |  |
STOCK-BASED COMPENSATION |  |
Granted a total of shares of restricted stock | 25,000 |
Non-employee director | Employee Stock Option |  |
STOCK-BASED COMPENSATION |  |
Common stock shares granted to each non-employee director (in shares) |  | 6,250
Aggregate common stock shares granted to non-employee director (in shares) |  | 25,000
Fair value of the award |  | $ 144,000

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