PREMISES AND EQUIPMENT - Additional information (Details) - USD ($)	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022	Dec. 31, 2022	Dec. 31, 2019
PREMISES AND EQUIPMENT
Operating leases right of use asset	$ 7,452,000		$ 7,397,000
Operating leases liability	$ 7,660,000		$ 7,599,000
Weighted-average lease term	7 years 4 months 24 days
Operating lease, weighted average discount rate, percent	3.75%
Operating lease, expense	$ 411,000	$ 369,000
Lease expense related to ATMs	72,000	69,000
Income recognized from lessor agreements	$ 324,000	$ 294,000
Minimum
PREMISES AND EQUIPMENT
Lessee expected lease terms	P1Y1M6D
Maximum
PREMISES AND EQUIPMENT
Lessee expected lease terms	P15Y8M12D
ASU 2016-02 | Adjustment
PREMISES AND EQUIPMENT
Operating leases right of use asset				$ 9,500,000