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Loans and Allowance for Loan and Lease Losses (Average Recorded Investment Of Impaired Loans And Related Interest Income By Loan Portfolio Class) (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2015
Sep. 30, 2014
Sep. 30, 2015
Sep. 30, 2014
Commercial and industrial [Member] | Industrial Property [Member]        
Financing Receivable, Impaired [Line Items]        
Impaired Loans with No Allowance: Average Recorded Investment $ 18 $ 48 $ 22 $ 51
Impaired Loans with No Allowance: Interest Income Recognized    
Impaired Loans with Allowance: Average Recorded Investment $ 124 $ 133 127 135
Impaired Loans with Allowance: Interest Income Recognized    
Impaired Financing Receivable, Average Recorded Investment, Total $ 142 $ 181 149 186
Impaired Financing Receivable, Interest Income Recognized, Total 100 205  
Commercial real estate [Member]        
Financing Receivable, Impaired [Line Items]        
Impaired Loans with No Allowance: Average Recorded Investment 991 $ 2,057 1,072 2,127
Impaired Loans with No Allowance: Interest Income Recognized 14 14 346
Impaired Loans with Allowance: Average Recorded Investment $ 5,167 $ 6,930 5,077 7,008
Impaired Loans with Allowance: Interest Income Recognized    
Impaired Financing Receivable, Average Recorded Investment, Total $ 7,084 $ 8,987 7,096 9,135
Impaired Financing Receivable, Interest Income Recognized, Total 14 361 346
Residential Portfolio [Member]        
Financing Receivable, Impaired [Line Items]        
Impaired Loans with No Allowance: Average Recorded Investment     673 930
Impaired Loans with No Allowance: Interest Income Recognized     8  
Residential Portfolio [Member] | Residential Mortgage [Member]        
Financing Receivable, Impaired [Line Items]        
Impaired Loans with No Allowance: Average Recorded Investment 735 $ 908    
Impaired Loans with No Allowance: Interest Income Recognized 8    
Impaired Loans with Allowance: Average Recorded Investment $ 31   19  
Impaired Loans with Allowance: Interest Income Recognized    
Impaired Financing Receivable, Average Recorded Investment, Total $ 1,192 $ 908 1,119 930
Impaired Financing Receivable, Interest Income Recognized, Total 8 8  
Consumer [Member] | Home Equity Loan [Member]        
Financing Receivable, Impaired [Line Items]        
Impaired Loans with No Allowance: Average Recorded Investment $ 21 $ 31 22 54
Impaired Loans with No Allowance: Interest Income Recognized    
Impaired Loans with Allowance: Average Recorded Investment $ 182 $ 112 178 115
Impaired Loans with Allowance: Interest Income Recognized    
Impaired Financing Receivable, Average Recorded Investment, Total $ 203 $ 143 200 $ 169
Impaired Financing Receivable, Interest Income Recognized, Total 3 3  
Receivables Acquired with Deteriorated Credit Quality [Member] | Commercial and industrial [Member] | Industrial Property [Member]        
Financing Receivable, Impaired [Line Items]        
Impaired Loans with No Allowance: Interest Income Recognized 100 205  
Receivables Acquired with Deteriorated Credit Quality [Member] | Commercial real estate [Member]        
Financing Receivable, Impaired [Line Items]        
Impaired Loans with No Allowance: Average Recorded Investment $ 926   947  
Impaired Loans with No Allowance: Interest Income Recognized 347  
Receivables Acquired with Deteriorated Credit Quality [Member] | Residential Portfolio [Member]        
Financing Receivable, Impaired [Line Items]        
Impaired Loans with No Allowance: Average Recorded Investment     427  
Receivables Acquired with Deteriorated Credit Quality [Member] | Residential Portfolio [Member] | Residential Mortgage [Member]        
Financing Receivable, Impaired [Line Items]        
Impaired Loans with No Allowance: Average Recorded Investment $ 426      
Impaired Loans with No Allowance: Interest Income Recognized    
Receivables Acquired with Deteriorated Credit Quality [Member] | Consumer [Member] | Home Equity Loan [Member]        
Financing Receivable, Impaired [Line Items]        
Impaired Loans with No Allowance: Interest Income Recognized $ 3 $ 3