Loans (Analysis of Nonaccrual Loans) (Details) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Financing Receivable, Recorded Investment [Line Items]
Recorded Investment Nonaccrual Loans	$ 25,547	$ 27,756
Unpaid Principal Balance Nonaccrual Loans	42,528	42,289
Secured Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Recorded Investment Nonaccrual Loans	10,659	11,524
Unpaid Principal Balance Nonaccrual Loans	21,144	21,503
Unsecured Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Recorded Investment Nonaccrual Loans	189	31
Unpaid Principal Balance Nonaccrual Loans	457	303
One-to-Four Family Residential [Member]
Financing Receivable, Recorded Investment [Line Items]
Recorded Investment Nonaccrual Loans	450	568
Unpaid Principal Balance Nonaccrual Loans	1,703	1,302
Commercial Land [Member]
Financing Receivable, Recorded Investment [Line Items]
Recorded Investment Nonaccrual Loans	2,729	934
Unpaid Principal Balance Nonaccrual Loans	2,726	922
Income Property Multifamily [Member]
Financing Receivable, Recorded Investment [Line Items]
Recorded Investment Nonaccrual Loans	3,290	4,005
Unpaid Principal Balance Nonaccrual Loans	3,561	4,247
Owner Occupied [Member]
Financing Receivable, Recorded Investment [Line Items]
Recorded Investment Nonaccrual Loans	4,218	6,248
Unpaid Principal Balance Nonaccrual Loans	8,544	9,030
Land And Acquisition [Member]
Financing Receivable, Recorded Investment [Line Items]
Recorded Investment Nonaccrual Loans	0	14
Unpaid Principal Balance Nonaccrual Loans	0	102
Residential Construction [Member]
Financing Receivable, Recorded Investment [Line Items]
Recorded Investment Nonaccrual Loans	213	549
Unpaid Principal Balance Nonaccrual Loans	213	549
Consumer Portfolio Segment [Member]
Financing Receivable, Recorded Investment [Line Items]
Recorded Investment Nonaccrual Loans	3,799	3,883
Unpaid Principal Balance Nonaccrual Loans	$ 4,180	$ 4,331