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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
Jun. 30, 2018
Dec. 31, 2017
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Individually evaluated for impairment $ 1,257 $ 1,247
Loans acquired with deteriorated credit quality 919 1,174
Collectively evaluated for impairment 801,767 761,914
Total Loans 803,943 764,335
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 644 833
Collectively evaluated for impairment 230,173 234,903
Total Loans 230,840 235,759
Commercial Real Estate Loans [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Individually evaluated for impairment 1,234 1,224
Loans acquired with deteriorated credit quality 275 341
Collectively evaluated for impairment 363,177 341,369
Total Loans 364,686 342,934
Construction Real Estate Loans [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Individually evaluated for impairment 0 0
Loans acquired with deteriorated credit quality 0 0
Collectively evaluated for impairment 18,115 17,228
Total Loans 18,115 17,228
Commercial, Financial And Agricultural [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Individually evaluated for impairment 0 0
Loans acquired with deteriorated credit quality 0 0
Collectively evaluated for impairment 101,779 97,461
Total Loans 101,779 97,461
Consumer Loans To Individuals [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Individually evaluated for impairment 0 0
Loans acquired with deteriorated credit quality 0 0
Collectively evaluated for impairment 88,523 70,953
Total Loans $ 88,523 $ 70,953