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DERIVATIVE FINANCIAL INSTRUMENTS - (Details) | 12 Months Ended
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Dec. 31, 2023 USD ($) item | Dec. 31, 2022 USD ($) item | Dec. 31, 2021 USD ($)
Derivative Financial Instruments |  |  |
Net impact | $ 18,000 | $ 14,000 |
Asset pledged |  |  |
Derivative Financial Instruments |  |  |
Margin Deposit Assets | 1,360,000 |  |
Interest rate swap agreements |  |  |
Derivative Financial Instruments |  |  |
Aggregate notional amount | $ 150,028,000 | 155,214,000 |
One Interest rate Swap Originated |  |  |
Derivative Financial Instruments |  |  |
Aggregate notional amount |  | $ 24,000,000 |
Number of derivative instruments originated | item | 0 | 1 |
One Interest rate Swap Originated | Non interest income |  |  |
Derivative Financial Instruments |  |  |
Fee income |  | $ 290,000 |
RPA Out |  |  |
Derivative Financial Instruments |  |  |
Asset Derivatives, Notional Amount | $ 7,082,000 | 7,200,000 |
Asset Derivatives, Fair Value | 11,000 | 0 |
Liability Derivatives, Notional Amount | 0 | 0 |
Liability Derivatives, Fair Value | 0 | 0 |
RPA In |  |  |
Derivative Financial Instruments |  |  |
Asset Derivatives, Notional Amount | 0 | 0 |
Asset Derivatives, Fair Value | 0 | 0 |
Liability Derivatives, Notional Amount | 10,000,000 | 10,000,000 |
Liability Derivatives, Fair Value | 13,000 | 19,000 |
Derivatives not designated as hedging instruments |  |  |
Derivative Financial Instruments |  |  |
Asset Derivatives, Notional Amount | 75,014,000 | 77,607,000 |
Asset Derivatives, Fair Value | 2,783,000 | 3,638,000 |
Liability Derivatives, Notional Amount | 75,014,000 | 77,607,000 |
Liability Derivatives, Fair Value | 2,783,000 | 3,638,000 |
Derivatives not designated as hedging instruments | Interest rate swap agreements |  |  |
Derivative Financial Instruments |  |  |
Interest rate swap | 0 |  |
Increase (decrease) in interest income | $ 1,796,000 | $ 342,000 | $ 1,347,000

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