Commitments And Contingencies (Outstanding Commitments ) (Details) - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
Commercial Commitments To Extend Credit [Member]
Loss Contingencies [Line Items]
Commitments outstanding	$ 226,069	$ 249,526
Consumer Commitments To Extend Credit (Secured) [Member]
Loss Contingencies [Line Items]
Commitments outstanding	46,166	44,866
Consumer Commitments To Extend Credit (Unsecured) [Member]
Loss Contingencies [Line Items]
Commitments outstanding	5,663	5,668
Commitments To Extend Credit [Member]
Loss Contingencies [Line Items]
Commitments outstanding	277,898	300,060
Standby Letters of Credit [Member]
Loss Contingencies [Line Items]
Commitments outstanding	$ 25,692	$ 28,630