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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, 2018
Sep. 30, 2017
Financing Receivable, Impaired [Line Items]    
With no related allowance recorded, Average recorded investment $ 4,783 $ 6,200
With no related allowance recorded, Interest income recognized 7 64
With an allowance recorded, Average recorded investment 5,730 3,821
With an allowance recorded, Interest income recognized 179 83
Commercial and industrial    
Financing Receivable, Impaired [Line Items]    
With no related allowance recorded, Average recorded investment 910 1,165
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    
Financing Receivable, Impaired [Line Items]    
With no related allowance recorded, Average recorded investment 3,873 5,035
With no related allowance recorded, Interest income recognized 7 64
With an allowance recorded, Average recorded investment 5,730 3,821
With an allowance recorded, Interest income recognized $ 179 $ 83