LOANS AND RELATED ALLOWANCE FOR CREDIT LOSSES (Loan Portfolio Summarized by the Past Due Status) (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Financing Receivable, Recorded Investment, Past Due
Financing receivables, gross	$ 536,716	$ 525,394
Total Past Due
Financing Receivable, Recorded Investment, Past Due
Financing receivables, gross	533	625
30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due
Financing receivables, gross	413	531
60-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due
Financing receivables, gross	13	90
Greater than 89 Days Past Due
Financing Receivable, Recorded Investment, Past Due
Financing receivables, gross	107	4
Commercial, Financial and Agricultural | Commercial Portfolio Segment
Financing Receivable, Recorded Investment, Past Due
Financing receivables, gross	69,178	65,821
Commercial, Financial and Agricultural | Commercial Portfolio Segment | Total Past Due
Financing Receivable, Recorded Investment, Past Due
Financing receivables, gross	80	73
Commercial, Financial and Agricultural | Commercial Portfolio Segment | 30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due
Financing receivables, gross	8	73
Commercial, Financial and Agricultural | Commercial Portfolio Segment | Greater than 89 Days Past Due
Financing Receivable, Recorded Investment, Past Due
Financing receivables, gross	72
Commercial Loan | Commercial Portfolio Segment
Financing Receivable, Recorded Investment, Past Due
Financing receivables, gross	236,442	223,077
Commercial Loan | Commercial Portfolio Segment | Total Past Due
Financing Receivable, Recorded Investment, Past Due
Financing receivables, gross		117
Commercial Loan | Commercial Portfolio Segment | 30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due
Financing receivables, gross		117
Construction Loan | Commercial Portfolio Segment | Total Past Due
Financing Receivable, Recorded Investment, Past Due
Financing receivables, gross	3
Construction Loan | Commercial Portfolio Segment | 30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due
Financing receivables, gross	3
Mortgage Loan | Consumer Portfolio Segment
Financing Receivable, Recorded Investment, Past Due
Financing receivables, gross	160,439	162,385
Mortgage Loan | Consumer Portfolio Segment | Total Past Due
Financing Receivable, Recorded Investment, Past Due
Financing receivables, gross	436	426
Mortgage Loan | Consumer Portfolio Segment | 30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due
Financing receivables, gross	398	332
Mortgage Loan | Consumer Portfolio Segment | 60-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due
Financing receivables, gross	3	90
Mortgage Loan | Consumer Portfolio Segment | Greater than 89 Days Past Due
Financing Receivable, Recorded Investment, Past Due
Financing receivables, gross	35	4
Obligations of State and Political Subdivisions | Commercial Portfolio Segment
Financing Receivable, Recorded Investment, Past Due
Financing receivables, gross	16,630	17,232
Personal Loan | Consumer Portfolio Segment
Financing Receivable, Recorded Investment, Past Due
Financing receivables, gross	4,000	4,290
Personal Loan | Consumer Portfolio Segment | Total Past Due
Financing Receivable, Recorded Investment, Past Due
Financing receivables, gross	14	9
Personal Loan | Consumer Portfolio Segment | 30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due
Financing receivables, gross	4	$ 9
Personal Loan | Consumer Portfolio Segment | 60-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due
Financing receivables, gross	$ 10