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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
3 Months Ended
Mar. 31, 2017
Mar. 31, 2016
Financing Receivable, Impaired [Line Items]    
With no related allowance recorded, Average recorded investment $ 4,483 $ 7,707
With no related allowance recorded, Interest income recognized 5 4
With an allowance recorded, Average recorded investment 2,832 0
With an allowance recorded, Interest income recognized 19 0
Commercial And Industrial [Member]    
Financing Receivable, Impaired [Line Items]    
With no related allowance recorded, Average recorded investment 1,365 2,349
With no related allowance recorded, Interest income recognized 0 0
With an allowance recorded, Average recorded investment 0 0
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 3,118 5,358
With no related allowance recorded, Interest income recognized 5 4
With an allowance recorded, Average recorded investment 2,832 0
With an allowance recorded, Interest income recognized $ 19 $ 0