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BORROWINGS - SUBORDINATED DEBT (Details) - Subordinated Debt [Member] - Fixed-to-Floating Rate Subordinated Notes, 5.25 Percent, Due 2030 [Member] - USD ($) $ in Millions | Sep. 15, 2025 | Sep. 30, 2022 | Dec. 31, 2021 | Aug. 06, 2020
--- | --- | --- | --- | ---
Debt Instrument [Line Items] |  |  |  |
Debt Instrument, Face Amount |  |  |  | $ 65.0
Debt Instrument, Interest Rate, Stated Percentage |  |  |  | 5.25%
Debt Instrument, Face Amount, Debt Issued, Percentage of Par |  |  |  | 100.00%
Long-term Debt |  | $ 63.7 | $ 63.5 |
Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member] | Forecast [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Debt Instrument, Basis Spread on Variable Rate | 5.21% |  |  |

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