FEDERAL AND STATE INCOME TAXES - Effective Tax Rate Reconciliation (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
FEDERAL AND STATE INCOME TAXES
Income tax expense at statutory federal rate	$ 6,942	$ 1,461
Federal income tax effects of:
State income tax benefit	(323)	(44)
Per diem and other nondeductible meals and entertainment	1	378
Taxes related to prior years	(22)	346
Non-deductible compensation	135	219
Loss carryback rate benefit	0	(628)
Other	(108)	(87)
Federal income tax expense	6,625	1,645
State income tax expense	1,663	564
Total income tax expense	$ 8,288	$ 2,209
Effective income tax rate reconciliation (as a percent)	25.10%	31.80%