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BENEFIT PLANS - Additional information (Details) - USD ($) | 1 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Nov. 30, 2021 | Apr. 30, 2026 | Dec. 31, 2025 | Apr. 30, 2025 | Dec. 31, 2024 | Apr. 30, 2024
BENEFIT PLANS |  |  |  |  |  |
Reclassification of the balance of accumulated other comprehensive income (loss) to a benefit for income taxes |  | $ 1,230,000 |  |  |  |
Stock-based compensation |  | $ 447,000 |  | $ 423,000 |  |
Unrecognized compensation cost recognition period |  | 3 years |  |  |  |
Stock option issued during the year |  | 18,500 |  | 16,140 |  |
Accrued compensation expense related to the deferred stock units |  | $ 40,000 |  | $ 30,000 |  |
Percentage of options exercisable | 100.00% |  |  |  |  |
Asset allocation for the pension plan by asset category | 100.00% |  |  |  |  |
Threshold period after ceases from employment on account of disability for automatic termination of options | 1 year |  |  |  |  |
Threshold period after ceases from employment on account of death for automatic termination of options | 1 year |  |  |  |  |
Term of options from the date of grant | 10 years |  |  |  |  |
Threshold period after ceases from employment for automatic termination of options | 3 months |  |  |  |  |
Fair value of options | $ 252,000 |  |  |  |  |
Expected volatility | 38.04% |  |  |  |  |
Average risk-free interest rate | 1.46% |  |  |  |  |
Dividend yield | 0.00% |  |  |  |  |
Expected life | 7 years 6 months |  |  |  |  |
Pension plan |  |  |  |  |  |
BENEFIT PLANS |  |  |  |  |  |
Amount of residual assets |  |  |  |  |  | $ 547,000
401(k) plan |  |  |  |  |  |
BENEFIT PLANS |  |  |  |  |  |
Contributions utilized |  | $ 137,000 | $ 137,000 | 92,000 | $ 92,000 |
Simple IRA plan |  |  |  |  |  |
BENEFIT PLANS |  |  |  |  |  |
Defined contribution plan, maximum contribution percentage |  | 3.00% |  |  |  |
Board of Directors Chairman |  |  |  |  |  |
BENEFIT PLANS |  |  |  |  |  |
Director compensation non-cash expense |  | $ 90,000 |  | 90,000 |  |
Equity plan |  |  |  |  |  |
BENEFIT PLANS |  |  |  |  |  |
Stock-based compensation |  | 357,000 |  | 311,000 |  |
Unrecognized compensation expense related to restricted shares |  | $ 255,000 |  |  |  |
Equity plan | President and Chief executive officer |  |  |  |  |  |
BENEFIT PLANS |  |  |  |  |  |
Stock option issued during the year | 50,000 |  |  |  |  |
Exercise price | $ 14.24 |  |  |  |  |
2016 Equity Plan |  |  |  |  |  |
BENEFIT PLANS |  |  |  |  |  |
Vested |  | 500,000 |  |  |  |
Number of common stock issued under the equity plan |  | 159,251 |  |  |  |
Shares reserved for issuance |  | 122,011 |  |  |  |
Non-vested |  | 218,738 |  |  |  |
2016 Equity Plan | Board of Directors Chairman |  |  |  |  |  |
BENEFIT PLANS |  |  |  |  |  |
Non cash compensation expense |  | $ 50,000 |  | $ 50,000 |  |
Non Cash Director Compensation |  |  | $ 30,000 |  | $ 30,000 |
Shares Issued, Price Per Share |  |  | $ 18.8 |  | $ 31.4 |
Stock Issued During Period, Shares, Restricted Stock Award, Gross |  |  | 4,785 |  | 2,865 |

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