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Loans (Details) - USD ($)
$ in Thousands
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Financing Receivable, Past Due [Line Items]      
Loans and Leases Receivable, Gross $ 844,157 $ 737,028 $ 718,462
Commercial, Financial And Agricultural Loan [Member]      
Financing Receivable, Past Due [Line Items]      
Loans and Leases Receivable, Gross 96,688 51,805 53,933
Construction Loans [Member]      
Financing Receivable, Past Due [Line Items]      
Loans and Leases Receivable, Gross 95,282 73,512 58,440
Residential Mortgage [Member]      
Financing Receivable, Past Due [Line Items]      
Loans and Leases Receivable, Gross 43,928 45,357 52,764
Commercial Real Estate [Member]      
Financing Receivable, Past Due [Line Items]      
Loans and Leases Receivable, Gross 573,258 527,447 513,833
Home Equity Line of Credit [Member]      
Financing Receivable, Past Due [Line Items]      
Loans and Leases Receivable, Gross 26,442 28,891 29,583
Consumer Portfolio Segment [Member]      
Financing Receivable, Past Due [Line Items]      
Loans and Leases Receivable, Gross $ 8,559 $ 10,016 $ 9,909