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Loans And Allowance For Loan Losses (Summary Of Post-Modification Balance of Troubled Debt Restructurings) (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Loans And Allowance For Loan Losses [Abstract]      
Extended maturity and adjusted interest rate $ 440 $ 132  
Adjusted payment 981 735  
Adjusted payment and capitalize interest   187  
Extended maturity, adjusted interest rate and adjusted payment   746  
Extended amortization and adjusted interest rate 9    
Court ordered concession 1    
Other concession 26    
Total $ 1,457 $ 1,800 $ 127