LOANS RECEIVABLE AND ALLOWANCE FOR CREDIT LOSSES - Troubled debt restructured loans (Details) - USD ($)	Jun. 30, 2022	Dec. 31, 2021
Financing Receivable, Impaired [Line Items]
Troubled debt restructured loans	$ 35,000	$ 36,000
Non-accrual and 90+ days past due and still accruing loans to average loans	0.11%	0.16%
Allowance for credit losses to non-accrual and 90 days or more and still accruing loans	964.40%	703.70%
Consumer and Indirect
Financing Receivable, Impaired [Line Items]
Troubled debt restructured loans	$ 34,876