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Allowance For Loan Losses (Schedule Of Information Related To Average Recorded Investment And Interest Income Recognized On Impaired Loans) (Details) - USD ($)
$ in Thousands
9 Months Ended
Sep. 30, 2016
Sep. 30, 2015
Financing Receivable, Impaired [Line Items]    
With no related allowance recorded, Average recorded investment $ 6,520 $ 7,128
With no related allowance recorded, Interest income recognized 9 3
With an allowance recorded, Average recorded investment 0 1,350
With an allowance recorded, Interest income recognized 0 0
Commercial And Industrial [Member]    
Financing Receivable, Impaired [Line Items]    
With no related allowance recorded, Average recorded investment 2,234 1,807
With no related allowance recorded, Interest income recognized 0 0
With an allowance recorded, Average recorded investment 0 1,350
With an allowance recorded, Interest income recognized 0 0
Commercial Real Estate [Member]    
Financing Receivable, Impaired [Line Items]    
With no related allowance recorded, Average recorded investment 4,286 5,321
With no related allowance recorded, Interest income recognized 9 3
With an allowance recorded, Average recorded investment 0 0
With an allowance recorded, Interest income recognized $ 0 $ 0