LOANS AND ALLOWANCE FOR LOAN LOSSES - Types of loan modifications (Details) - loan	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Financing Receivable, Modifications, Number of Contracts	0	3
Term Modification
Financing Receivable, Modifications, Number of Contracts		2
Payment Modification
Financing Receivable, Modifications, Number of Contracts		1
Commercial Real Estate
Financing Receivable, Modifications, Number of Contracts		3
Commercial Real Estate | Term Modification
Financing Receivable, Modifications, Number of Contracts		2
Commercial Real Estate | Payment Modification
Financing Receivable, Modifications, Number of Contracts		1