Loans And Leases (Loans Modified As TDRs By Class Of Loans) (Details) - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Recorded Investment	$ 3,266	$ 3,386
Nonperforming Financing Receivable [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Recorded Investment	104	115
Commercial [Member] | Nonperforming Financing Receivable [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Recorded Investment	$ 104	$ 115