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FINANCIAL INSTRUMENTS WITH OFF-BALANCE-SHEET RISK (Outstanding following off-balance-sheet financial instruments) (Details) - USD ($) | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2022 | Dec. 31, 2021
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items] |  |
Fixed Rate | $ 93,804 | $ 89,664
Variable Rate | 343,546 | 346,115
Unused commitments |  |
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items] |  |
Fixed Rate | 43,628,000 | 39,676,000
Variable Rate | 343,546,000 | 346,115,000
Standby and commercial letters of credit |  |
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items] |  |
Fixed Rate | 50,176,000 | 49,988,000
Variable Rate | $ 0 | $ 0

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