Loans And Allowance For Loan Losses (Loans Modified As Troubled Debt Restructurings) (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2016 USD ($) contract	Dec. 31, 2015 USD ($) contract
Financing Receivable, Modifications [Line Items]
Number of Modifications | contract	2	1
Recorded Investment | $	$ 188	$ 5,511
Commercial Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Number of Modifications | contract	1
Recorded Investment | $	$ 164
Commercial Portfolio Segment [Member]
Financing Receivable, Modifications [Line Items]
Number of Modifications | contract	1	1
Recorded Investment | $	$ 24	$ 5,511