Commitments And Contingencies (Details) $ in Thousands	Mar. 31, 2017 USD ($)
Loss Contingencies [Line Items]
Total unfunded commitments	$ 227,241
Revolving Home Equity And Credit Card Lines [Member]
Loss Contingencies [Line Items]
Total unfunded commitments	64,262
Construction [Member]
Loss Contingencies [Line Items]
Total unfunded commitments	46,643
Other Loans [Member]
Loss Contingencies [Line Items]
Total unfunded commitments	113,035
Standby Letters Of Credit [Member]
Loss Contingencies [Line Items]
Total unfunded commitments	$ 3,301