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ALLOWANCE FOR CREDIT LOSSES AND CREDIT QUALITY INFORMATION - Narrative (Details) $ in Thousands | 3 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | ---
Sep. 30, 2024 USD ($) | Sep. 30, 2023 USD ($) | Sep. 30, 2024 USD ($) loan | Sep. 30, 2023 USD ($) | Dec. 31, 2023 USD ($) loan
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |
Loan workout and other credit costs | $ 1,684 | $ (189) | $ 1,477 | $ 292 |
Various Modifications |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |
Unused commitments to extend credit | 26,000 |  | 26,000 |  | $ 18,400
Loans Modified |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |
Loans modified with subsequent default | 34,390 | 12,033 | $ 49,555 | 12,033 |
Residential |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |
Number of loans in the process of foreclosure | loan |  |  | 36 |  | 31
Total loans outstanding |  |  | $ 6,000 |  | $ 3,200
Residential | Loans Modified |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |
Loans modified with subsequent default | 121 |  | $ 121 |  |
Commercial |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |
Number of loans in the process of foreclosure | loan |  |  | 19 |  | 9
Total loans outstanding |  |  | $ 8,900 |  | $ 1,100
Residential and Consumer Loans |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |
Loan workout and other credit costs | $ 800 | $ (300) | $ 700 | $ 100 |
Impairment loans, charge off period |  |  | 90 days |  |

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