Loans And Allowance For Loan Losses (Troubled Debt Restructured Loans Outstanding) (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Financing Receivable, Modifications [Line Items]
Accruing	$ 1,178	$ 20,235
Nonaccrual	3,844	6,292
Commercial Portfolio Segment [Member]
Financing Receivable, Modifications [Line Items]
Accruing	45	659
Nonaccrual	3,323	5,796
Commercial Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Accruing	1,118	19,563
Nonaccrual	475	448
One-To-Four Family Residential [Member]
Financing Receivable, Modifications [Line Items]
Accruing	15	13
Nonaccrual	$ 46	$ 48