Loans And Allowance For Loan Losses (Recorded Investment In Loans On Nonaccrual Status) (Details) - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total nonaccrual loans	$ 22,929	$ 16,267
Commercial Real Estate Portfolio Segment [Member] | Real Estate Mortgage [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total nonaccrual loans	6,694	6,471
Commercial Real Estate Portfolio Segment [Member] | Construction Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total nonaccrual loans	132	522
Residential Portfolio Segment [Member] | Real Estate Mortgage [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total nonaccrual loans	2,752	2,766
Real Estate Construction [Member] | One-To-Four Family Residential [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total nonaccrual loans	447	448
Commercial Portfolio Segment [Member] | Commercial [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total nonaccrual loans	12,883	5,949
Consumer Portfolio Segment [Member] | Other Consumer [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total nonaccrual loans	$ 21	$ 111