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STOCK PLANS - Non-Vested Stock Option Activity (Details) - Stock options - $ / shares | 12 Months Ended
--- | ---
Dec. 31, 2025 | Dec. 31, 2024 | Dec. 31, 2023
Stock Plans |  |  |
Balance at beginning of year, Nonvested Options (in shares) | 110,567 |  |
Options granted (in shares) | 54,495 |  |
Vested (in shares) | (61,170) |  |
Canceled (in shares) | (449) |  |
Forfeited (in shares) | (2,817) |  |
Balance at end of year, Nonvested Options (in shares) | 100,626 | 110,567 |
Nonvested stock options, Weighted Average Fair Value at Grant Date |  |  |
Balance at beginning of year, weighted average fair value at grant date (in dollars per share) | $ 53.42 |  |
Granted, weighted average fair value at grant date (in dollars per share) | 55.85 | $ 66.2 | $ 46.94
Vested, weighted average fair value at grant date (in dollars per share) | $ 47.47 |  |
Canceled, weighted average fair value at grant date (in dollars per share) | 16.49 |  |
Forfeited, weighted average fair value at grant date (in dollars per share) | $ 61.67 |  |
Balance at end of year, weighted average fair value at grant date (in dollars per share) | $ 58.05 | $ 53.42 |

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