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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
6 Months Ended
Jun. 30, 2018
Jun. 30, 2017
Financing Receivable, Impaired [Line Items]    
With no related allowance recorded, Average recorded investment $ 4,751 $ 7,304
With no related allowance recorded, Interest income recognized 6 63
With an allowance recorded, Average recorded investment 5,741 2,832
With an allowance recorded, Interest income recognized 110 38
Commercial and industrial    
Financing Receivable, Impaired [Line Items]    
With no related allowance recorded, Average recorded investment 1,036 1,282
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 3,715 6,022
With no related allowance recorded, Interest income recognized 6 63
With an allowance recorded, Average recorded investment 5,741 2,832
With an allowance recorded, Interest income recognized $ 110 $ 38