INTEREST RATE SWAPS - NON-HEDGE (Details) - USD ($)	Dec. 31, 2021	Dec. 31, 2020
Information about derivatives and swaps
Fair value of securities pledged as collateral	$ 319,808,000	$ 303,611,000
Counterparty
Information about derivatives and swaps
Fair value of securities pledged as collateral	6,800,000	13,300,000
Counterparty | Minimum
Information about derivatives and swaps
Net loss position in which pledged securities as collateral are required	250,000
Interest rate swap | Non-Hedge
Information about derivatives and swaps
Interest rate swaps with Bank clients - Total, Notional Amount	247,850,000	276,554,000
Interest rate swap | Non-Hedge | Bank Clients
Information about derivatives and swaps
Interest rate swaps with Bank clients - Assets, Notional Amount	107,502,000	138,277,000
Interest rate swaps with Bank clients - Liabilities, Notional Amount	16,423,000
Interest rate swaps with Bank clients - Total, Notional Amount	123,925,000	138,277,000
Interest rate swaps with Bank clients - Assets, Fair Value	5,786,000	12,545,000
Interest rate swaps with Bank clients - Liabilities, Fair Value	(298,000)
Interest rate swaps with Bank clients - Total, Fair Value	5,488,000	12,545,000
Interest rate swap | Non-Hedge | Counterparty
Information about derivatives and swaps
Interest rate swaps with Bank clients - Total, Notional Amount	123,925,000	138,277,000
Interest rate swaps with Bank clients - Total, Fair Value	$ (5,488,000)	$ (12,545,000)