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Commitments And Contingencies (Outstanding Commitments ) (Details) - USD ($)
$ in Thousands
Mar. 31, 2019
Dec. 31, 2018
Commercial Commitments To Extend Credit [Member]    
Loss Contingencies [Line Items]    
Commitments outstanding $ 231,555 $ 216,913
Consumer Commitments To Extend Credit (Secured) [Member]    
Loss Contingencies [Line Items]    
Commitments outstanding 50,950 49,221
Consumer Commitments To Extend Credit (Unsecured) [Member]    
Loss Contingencies [Line Items]    
Commitments outstanding 5,506 5,605
Commitments To Extend Credit [Member]    
Loss Contingencies [Line Items]    
Commitments outstanding 288,011 271,739
Standby Letters of Credit [Member]    
Loss Contingencies [Line Items]    
Commitments outstanding $ 25,306 $ 25,429