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LOANS AND ALLOWANCE FOR CREDIT LOSSES - Narrative (Details) $ in Thousands | 9 Months Ended |  |  |  |  |
--- | --- | --- | --- | --- | --- | ---
Sep. 30, 2025 USD ($) loan | Jun. 30, 2025 USD ($) | Dec. 31, 2024 USD ($) | Sep. 30, 2024 USD ($) | Jun. 30, 2024 USD ($) | Dec. 31, 2023 USD ($)
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Unfunded commitments | $ 22,182 | $ 21,347 | $ 20,549 | $ 21,000 | $ 21,178 | $ 22,908
Outstanding commitments | loan | 0 |  |  |  |  |
Commercial Loan |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Interest income discontinued over delinquent days | 90 days |  |  |  |  |
Closed Ended Consumer Loan |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Interest income discontinued over delinquent days | 120 days |  |  |  |  |
Real Estate and Open Ended Consumer Loans |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Interest income discontinued over delinquent days | 180 days |  |  |  |  |
Unfunded Commitment |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Unfunded commitments | $ 493 | 627 | 334 |  |  |
Commercial/Agricultural Real Estate |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Unfunded commitments | $ 17,552 | $ 17,164 | $ 16,516 | $ 16,923 | $ 17,033 | $ 18,784
Commercial/Agricultural Real Estate | Agricultural real estate |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Loan-to-value ratio (as a percent) | 75.00% |  |  |  |  |

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