Loans (Analysis of Nonaccrual Loans) (Details) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Recorded Investment, Nonaccrual Status	$ 21,464
Unpaid Principal Balance Nonaccrual Loans	32,263	$ 44,774
Recorded Investment Nonaccrual Loans		31,352
Consumer [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Recorded Investment, Nonaccrual Status	766
Unpaid Principal Balance Nonaccrual Loans	990	3,930
Recorded Investment Nonaccrual Loans		2,939
Commercial business: Secured loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Recorded Investment, Nonaccrual Status	9,395
Unpaid Principal Balance Nonaccrual Loans	15,688	21,453
Recorded Investment Nonaccrual Loans		16,552
Commercial business: Unsecured loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Recorded Investment, Nonaccrual Status	42
Unpaid Principal Balance Nonaccrual Loans	256	269
Recorded Investment Nonaccrual Loans		247
Real estate: One-to-four family residential [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Recorded Investment, Nonaccrual Status	820
Unpaid Principal Balance Nonaccrual Loans	1,866	5,680
Recorded Investment Nonaccrual Loans		2,822
Real estate: Commercial and multifamily residential: Commercial land [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Recorded Investment, Nonaccrual Status	349
Unpaid Principal Balance Nonaccrual Loans	332	1,113
Recorded Investment Nonaccrual Loans		821
Real estate: Commercial and multifamiIy residential: Income property [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Recorded Investment, Nonaccrual Status	2,843
Unpaid Principal Balance Nonaccrual Loans	3,124	5,521
Recorded Investment Nonaccrual Loans		3,200
Real estate: Commercial and multifamiIy residential: Owner occupied [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Recorded Investment, Nonaccrual Status	6,321
Unpaid Principal Balance Nonaccrual Loans	8,943	5,837
Recorded Investment Nonaccrual Loans		3,826
Real estate construction: One-to-four family residential: Land and acquisition [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Recorded Investment, Nonaccrual Status	362
Unpaid Principal Balance Nonaccrual Loans	385	112
Recorded Investment Nonaccrual Loans		95
Real estate construction: One-to-four family residential: Residential construction [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Recorded Investment, Nonaccrual Status	566
Unpaid Principal Balance Nonaccrual Loans	679	370
Recorded Investment Nonaccrual Loans		370
Real estate construction: Commercial and multifamily residential: Owner occupied [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Recorded Investment, Nonaccrual Status	0
Unpaid Principal Balance Nonaccrual Loans	$ 0	489
Recorded Investment Nonaccrual Loans		$ 480