Loans (Analysis of Nonaccrual Loans) (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Recorded Investment, Nonaccrual Status	$ 27,756
Unpaid Principal Balance Nonaccrual Loans	42,289	$ 32,263
Recorded Investment Nonaccrual Loans		21,464
Consumer [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Recorded Investment, Nonaccrual Status	3,883
Unpaid Principal Balance Nonaccrual Loans	4,331	990
Recorded Investment Nonaccrual Loans		766
Commercial business: Secured loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Recorded Investment, Nonaccrual Status	11,524
Unpaid Principal Balance Nonaccrual Loans	21,503	15,688
Recorded Investment Nonaccrual Loans		9,395
Commercial business: Unsecured loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Recorded Investment, Nonaccrual Status	31
Unpaid Principal Balance Nonaccrual Loans	303	256
Recorded Investment Nonaccrual Loans		42
Real estate: One-to-four family residential [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Recorded Investment, Nonaccrual Status	568
Unpaid Principal Balance Nonaccrual Loans	1,302	1,866
Recorded Investment Nonaccrual Loans		820
Real estate: Commercial and multifamily residential: Commercial land [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Recorded Investment, Nonaccrual Status	934
Unpaid Principal Balance Nonaccrual Loans	922	332
Recorded Investment Nonaccrual Loans		349
Real estate: Commercial and multifamiIy residential: Income property [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Recorded Investment, Nonaccrual Status	4,005
Unpaid Principal Balance Nonaccrual Loans	4,247	3,124
Recorded Investment Nonaccrual Loans		2,843
Real estate: Commercial and multifamiIy residential: Owner occupied [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Recorded Investment, Nonaccrual Status	6,248
Unpaid Principal Balance Nonaccrual Loans	9,030	8,943
Recorded Investment Nonaccrual Loans		6,321
Real estate construction: One-to-four family residential: Land and acquisition [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Recorded Investment, Nonaccrual Status	14
Unpaid Principal Balance Nonaccrual Loans	102	385
Recorded Investment Nonaccrual Loans		362
Real estate construction: One-to-four family residential: Residential construction [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Recorded Investment, Nonaccrual Status	549
Unpaid Principal Balance Nonaccrual Loans	$ 549	679
Recorded Investment Nonaccrual Loans		$ 566

Financing Receivable, Recorded Investment, Gross, Nonaccrual Status

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- Definition

Financing Receivable Unpaid Principal Balance Nonaccrual Status.

+ References

No definition available.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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- Definition

Recorded investment in financing receivables that are on nonaccrual status as of the balance sheet date.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Recorded Investment
-URI http://asc.fasb.org/extlink&oid=65880944

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 7
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=66008989&loc=d3e5111-111524

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