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LOANS AND ALLOWANCE FOR CREDIT LOSSES - Narrative (Details) - USD ($) $ in Thousands | 9 Months Ended |  |  |  |  |
--- | --- | --- | --- | --- | --- | ---
Sep. 30, 2024 | Jun. 30, 2024 | Dec. 31, 2023 | Sep. 30, 2023 | Jun. 30, 2023 | Dec. 31, 2022
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Unfunded commitments | $ 21,000 | $ 21,178 | $ 22,908 | $ 22,973 | $ 23,164 | $ 17,939
Outstanding commitments | 0 |  |  |  |  |
Remaining borrowing capacity | $ 10 |  |  |  |  |
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 | $ 460 | 712 | 1,250 |  |  | 0
Commercial/Agricultural Real Estate |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Unfunded commitments | $ 16,923 | $ 17,033 | $ 18,784 | $ 18,855 | $ 18,933 | $ 14,085
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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