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Loans, Allowance For Loan Losses And OREO (Loans On Non-Accrual Status) (Details) - USD ($)
$ in Thousands
Jun. 30, 2018
Dec. 31, 2017
Financing Receivable, Recorded Investment [Line Items]    
Financing Receivables on Non-Accrual Status $ 3,195 $ 4,309
Commercial [Member]    
Financing Receivable, Recorded Investment [Line Items]    
Financing Receivables on Non-Accrual Status 763 727
Commercial Mortgages-Owner Occupied [Member]    
Financing Receivable, Recorded Investment [Line Items]    
Financing Receivables on Non-Accrual Status 1,495 1,465
Commercial Mortgages-Non-Owner Occupied [Member]    
Financing Receivable, Recorded Investment [Line Items]    
Financing Receivables on Non-Accrual Status 210 468
Commercial Construction [Member]    
Financing Receivable, Recorded Investment [Line Items]    
Financing Receivables on Non-Accrual Status 30  
Consumer Unsecured [Member]    
Financing Receivable, Recorded Investment [Line Items]    
Financing Receivables on Non-Accrual Status 1
Consumer Secured [Member]    
Financing Receivable, Recorded Investment [Line Items]    
Financing Receivables on Non-Accrual Status 390 566
Residential Mortgages [Member]    
Financing Receivable, Recorded Investment [Line Items]    
Financing Receivables on Non-Accrual Status 252 1,025
Residential Consumer Construction [Member]    
Financing Receivable, Recorded Investment [Line Items]    
Financing Receivables on Non-Accrual Status $ 54 $ 58