INCOME TAXES - Summary of reconciliation between the income tax expense and the amount of income taxes (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Amount
Federal income tax at statutory rate	$ 1,311	$ 3,427
Tax-exempt income	(106)	(749)
Low-income housing credits	(484)	(249)
Bank owned life insurance income	(130)	(125)
Prior year tax adjustments	82
Other	11	(10)
Income tax expense and rate	$ 684	$ 2,294
Rate
Federal income tax at statutory rate	21.00%	21.00%
Tax-exempt income	(1.70%)	(4.60%)
Low-income housing credits	(7.70%)	(1.50%)
Bank owned life insurance income	(2.10%)	(0.70%)
Prior year tax adjustments	1.30%
Other	0.20%	(0.10%)
Income tax expense and rate	11.00%	14.10%