Loans And Allowance For Loan Losses (Loans Modified As Troubled Debt Restructurings) (Details) $ in Thousands	3 Months Ended	6 Months Ended
	Jun. 30, 2017 USD ($) loan	Jun. 30, 2017 USD ($) loan	Jun. 30, 2016 USD ($) loan
Financing Receivable, Modifications [Line Items]
Number of Modifications | loan	3	3	1
Recorded Investment | $	$ 4,174	$ 4,174	$ 26
Commercial Portfolio Segment [Member] | Commercial [Member]
Financing Receivable, Modifications [Line Items]
Number of Modifications | loan	3	3	1
Recorded Investment | $	$ 4,174	$ 4,174	$ 26