Loans And Allowance For Loan Losses (Recorded Investment In Loans On Nonaccrual Status) (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total nonaccrual loans	$ 16,267	$ 19,858
Commercial Real Estate Portfolio Segment [Member] | Commercial Real Estate [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total nonaccrual loans	6,471	3,543
Commercial Real Estate Portfolio Segment [Member] | One-To-Four Family Residential [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total nonaccrual loans	2,766	1,729
Residential Portfolio Segment [Member] | Commercial Real Estate [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total nonaccrual loans	522	562
Residential Portfolio Segment [Member] | One-To-Four Family Residential [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total nonaccrual loans	448	448
Commercial Portfolio Segment [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total nonaccrual loans	5,949	13,491
Consumer Portfolio Segment [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total nonaccrual loans	$ 111	$ 85