LOAN CREDIT QUALITY AND RELATED ALLOWANCE FOR LOAN LOSSES - Allowance for Loan Losses (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Ending allowance balance attributable to loans:
Individually evaluated for impairment	$ 961	$ 1,023
Collectively evaluated for impairment	14,676	13,153
Total ending allowance balance	15,637	14,176	$ 13,803	$ 11,894
Loans:
Individually evaluated for impairment	11,233	13,985
Collectively evaluated for impairment	1,627,850	1,377,861
Total	1,639,083	1,391,846
Commercial, financial, and agricultural
Ending allowance balance attributable to loans:
Individually evaluated for impairment	4	2
Collectively evaluated for impairment	1,910	1,944
Total ending allowance balance	1,914	1,946	1,936	1,779
Loans:
Individually evaluated for impairment	698	889
Collectively evaluated for impairment	189,763	162,396
Total	190,461	163,285
Real estate mortgage: \| Residential
Ending allowance balance attributable to loans:
Individually evaluated for impairment	111	201
Collectively evaluated for impairment	4,950	4,500
Total ending allowance balance	5,061	4,701	4,460	4,306
Loans:
Individually evaluated for impairment	4,321	5,052
Collectively evaluated for impairment	703,888	590,795
Total	708,209	595,847
Real estate mortgage: \| Commercial
Ending allowance balance attributable to loans:
Individually evaluated for impairment	827	800
Collectively evaluated for impairment	5,283	4,536
Total ending allowance balance	6,110	5,336	3,635	3,210
Loans:
Individually evaluated for impairment	6,195	7,919
Collectively evaluated for impairment	494,437	438,815
Total	500,632	446,734
Real estate mortgage: \| Construction
Ending allowance balance attributable to loans:
Individually evaluated for impairment	0	0
Collectively evaluated for impairment	188	179
Total ending allowance balance	188	179	134	118
Loans:
Individually evaluated for impairment	0	105
Collectively evaluated for impairment	43,308	37,190
Total	43,308	37,295
Consumer automobile loans
Ending allowance balance attributable to loans:
Individually evaluated for impairment	0	0
Collectively evaluated for impairment	1,617	1,411
Total ending allowance balance	1,617	1,411	1,906	1,780
Loans:
Individually evaluated for impairment	0	0
Collectively evaluated for impairment	186,112	139,408
Total	186,112	139,408
Other consumer installment loans
Ending allowance balance attributable to loans:
Individually evaluated for impairment	19	20
Collectively evaluated for impairment	90	91
Total ending allowance balance	109	111	261	278
Loans:
Individually evaluated for impairment	19	20
Collectively evaluated for impairment	10,342	9,257
Total	10,361	9,277	19,940
Unallocated
Ending allowance balance attributable to loans:
Individually evaluated for impairment	0	0
Collectively evaluated for impairment	638	492
Total ending allowance balance	$ 638	$ 492	$ 1,471	$ 423

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Amount of allowance for credit loss on financing receivable. Excludes allowance for financing receivable covered under loss sharing agreement.

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