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Loans Receivable and Allowance for Loan Losses (Summary Of Amount Of Loans In Each Category That Were Individually And Collectively Evaluated For Impairment) (Details) - USD ($)
$ in Thousands
Dec. 31, 2017
Dec. 31, 2016
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Individually evaluated for impairment $ 1,247 $ 2,624
Loans acquired with deteriorated credit quality 1,174 1,386
Collectively evaluated for impairment 761,914 710,095
Total Loans 764,335 714,105
Residential Real Estate Loans [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Individually evaluated for impairment 23 23
Loans acquired with deteriorated credit quality 833 821
Collectively evaluated for impairment 234,903 236,333
Total Loans 235,759 237,177
Commercial Real Estate Loans [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Individually evaluated for impairment 1,224 2,601
Loans acquired with deteriorated credit quality 341 565
Collectively evaluated for impairment 341,369 317,021
Total Loans 342,934 320,187
Construction Real Estate Loans [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Collectively evaluated for impairment 17,228 19,709
Total Loans 17,228 19,709
Commercial, Financial And Agricultural [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Collectively evaluated for impairment 97,461 85,508
Total Loans 97,461 85,508
Consumer Loans To Individuals [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Collectively evaluated for impairment 70,953 51,524
Total Loans $ 70,953 $ 51,524