LOAN CREDIT QUALITY AND RELATED ALLOWANCE FOR LOAN LOSSES - Interest Income (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Accounts, Notes, Loans and Financing Receivable [Line Items]
Interest Income That Would Have Been Recorded Based on Original Term and Rate	$ 288	$ 111	$ 679
Interest Income Recorded on a Cash Basis	0	28	54
Commercial, financial, and agricultural
Accounts, Notes, Loans and Financing Receivable [Line Items]
Interest Income That Would Have Been Recorded Based on Original Term and Rate	112	29	166
Interest Income Recorded on a Cash Basis	0	0	2
Real estate mortgage: | Residential
Accounts, Notes, Loans and Financing Receivable [Line Items]
Interest Income That Would Have Been Recorded Based on Original Term and Rate	29	21	158
Interest Income Recorded on a Cash Basis	0	28	33
Real estate mortgage: | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Interest Income That Would Have Been Recorded Based on Original Term and Rate	144	60	333
Interest Income Recorded on a Cash Basis	0	0	8
Real estate mortgage: | Construction Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Interest Income That Would Have Been Recorded Based on Original Term and Rate	3	1	4
Interest Income Recorded on a Cash Basis	0	0	0
Consumer automobile loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Interest Income That Would Have Been Recorded Based on Original Term and Rate	0	0	16
Interest Income Recorded on a Cash Basis	0	0	10
Other consumer installment loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Interest Income That Would Have Been Recorded Based on Original Term and Rate	0	0	2
Interest Income Recorded on a Cash Basis	$ 0	$ 0	$ 1