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DERIVATIVE FINANCIAL INSTRUMENTS - Narrative (Details) | 12 Months Ended |
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Dec. 31, 2021 USD ($) derivativeInstrument customer broker | Dec. 31, 2020 USD ($) bank
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |
Cash collateral held by counterparty for derivatives | $ 260,000 | $ 1,700,000
Cash collateral received from counterparty for derivatives | $ 490,000 | $ 0
Interest rate contract |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |
Number of derivatives | bank |  | 1
Number of customers | customer | 12 |
Number of third-party brokers | broker | 12 |
Interest rate contract | Designated as Hedging Instrument |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |
Terminated derivative, notional amount | $ 50,000,000 |
Reclassification of realized losses from AOCI | $ (398,000) |
Number of derivatives | derivativeInstrument | 0 |
Derivative, notional amount |  | $ 50,000,000
Interest rate contract | Not Designated as Hedging Instrument |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |
Derivative, notional amount | $ 75,800,000 | 61,300,000
Risk Participation Agreement | Agent Bank |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |
Upfront fee received | 53,000 |
Derivative liabilities | $ 15,900,000 | $ 0

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