Commitments And Contingencies (Outstanding Commitments )(Details) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Commercial Commitments To Extend Credit [Member]
Loss Contingencies [Line Items]
Commitments outstanding	$ 246,279	$ 249,526
Consumer Commitments To Extend Credit (Secured) [Member]
Loss Contingencies [Line Items]
Commitments outstanding	45,632	44,866
Consumer Commitments To Extend Credit (Unsecured) [Member]
Loss Contingencies [Line Items]
Commitments outstanding	5,626	5,668
Commitments To Extend Credit [Member]
Loss Contingencies [Line Items]
Commitments outstanding	297,537	300,060
Standby Letters of Credit [Member]
Loss Contingencies [Line Items]
Commitments outstanding	$ 29,146	$ 28,630