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Allowance For Loan Losses (Schedule Of Impaired Loans) (Details) - USD ($)
$ in Thousands
Sep. 30, 2016
Dec. 31, 2015
Financing Receivable, Impaired [Line Items]    
With no related allowance recorded, Recorded investment $ 5,367 $ 8,482
With no related allowance recorded, Unpaid principal balance 9,357 17,049
With an allowance recorded, Recorded investment 0 0
With an allowance recorded, Unpaid principal balance 0 0
Related allowance 0 0
Commercial And Industrial [Member]    
Financing Receivable, Impaired [Line Items]    
With no related allowance recorded, Recorded investment 1,939 2,349
With no related allowance recorded, Unpaid principal balance 4,104 7,547
With an allowance recorded, Recorded investment 0 0
With an allowance recorded, Unpaid principal balance 0 0
Related allowance 0 0
Commercial Real Estate [Member]    
Financing Receivable, Impaired [Line Items]    
With no related allowance recorded, Recorded investment 3,428 6,133
With no related allowance recorded, Unpaid principal balance 5,253 9,502
With an allowance recorded, Recorded investment 0 0
With an allowance recorded, Unpaid principal balance 0 0
Related allowance $ 0 $ 0