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EMPLOYEE AND POSTRETIREMENT BENEFIT PLANS - Stock Based Compensation Paragraphs (Details) - USD ($) | 1 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | ---
Jan. 31, 2025 | Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022 | Apr. 20, 2023 | Dec. 31, 2021
STOCK-BASED COMPENSATION PLANS |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Intrinsic Value |  | $ 14,000 | $ 76,000 |  |  |
Share-based Payment Arrangement, Expense |  | $ 1,494,000 | $ 1,472,000 | $ 1,260,000 |  |
Outstanding stock options |  | 0 | 646 | 10,564 |  | 24,218
Employee Stock Option |  |  |  |  |  |
STOCK-BASED COMPENSATION PLANS |  |  |  |  |  |
Share-based Payment Arrangement, Expense |  | $ 0 | $ 0 | $ 0 |  |
Restricted Stock |  |  |  |  |  |
STOCK-BASED COMPENSATION PLANS |  |  |  |  |  |
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount, Total |  | $ 1,639,000 |  |  |  |
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition |  | 1 year 6 months |  |  |  |
Granted (in shares) |  | 92,860 |  |  |  |
Share-based Payment Arrangement, Expense |  | $ 1,494,000 | $ 1,472,000 | $ 1,260,000 |  |
Stock Incentive Plan | Restricted Stock |  |  |  |  |  |
STOCK-BASED COMPENSATION PLANS |  |  |  |  |  |
Shares awarded (in shares) |  | 92,860 | 53,788 |  |  |
Stock Incentive Plan | Restricted Stock | Employees |  |  |  |  |  |
STOCK-BASED COMPENSATION PLANS |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period (Year) |  | 3 years | 3 years |  |  |
Shares awarded (in shares) |  | 63,514 | 31,684 |  |  |
Stock Incentive Plan | Performance Shares | Employees |  |  |  |  |  |
STOCK-BASED COMPENSATION PLANS |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period (Year) |  | 3 years | 3 years |  |  |
Shares awarded (in shares) |  | 19,346 | 11,104 |  |  |
Independent Directors Stock Incentive Plan | Restricted Stock | Independent directors |  |  |  |  |  |
STOCK-BASED COMPENSATION PLANS |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period (Year) |  | 1 year | 1 year |  |  |
Shares awarded (in shares) |  | 10,000 | 11,000 |  |  |
2023 Equity Incentive Plan |  |  |  |  |  |
STOCK-BASED COMPENSATION PLANS |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized |  |  |  |  | 500,000 |
Shares awarded (in shares) |  | 92,860 |  |  |  |
2023 Equity Incentive Plan | Restricted Stock |  |  |  |  |  |
STOCK-BASED COMPENSATION PLANS |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period (Year) | 3 years |  |  |  |  |
Granted (in shares) | 31,113 |  |  |  |  |
2023 Equity Incentive Plan | Performance Based Restricted Stock Award |  |  |  |  |  |
STOCK-BASED COMPENSATION PLANS |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period (Year) | 3 years |  |  |  |  |
Granted (in shares) | 11,848 |  |  |  |  |

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