Loans Receivable, Net - Troubled Debt Restructurings (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Dec. 31, 2014 SecurityLoan	Dec. 31, 2013 SecurityLoan
Residential Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Number of Loans	10	6
Pre-modification Recorded Investment	$ 2,313	$ 1,704
Post-modification Recorded Investment	1,901	1,696
Subsequently Defaulted [Member] \| Residential Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Number of Loans		2
Recorded Investment		300
Consumer [Member]
Financing Receivable, Modifications [Line Items]
Number of Loans	10	12
Pre-modification Recorded Investment	234	601
Post-modification Recorded Investment	178	439
Consumer [Member] \| Subsequently Defaulted [Member]
Financing Receivable, Modifications [Line Items]
Number of Loans	1	1
Recorded Investment	$ 40	$ 12

Financing Receivable Modifications Post Modification Recorded Investment During Period

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- Definition

Financing Receivable Modifications Pre Modification Recorded Investment During Period

+ References

No definition available.

+ Details

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- Definition

Trouble Debt Restructuring Modifications Recorded Investment

+ References

No definition available.

+ Details

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- Definition

Number of financing receivables that have been modified by troubled debt restructurings.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 10

-Section 50

-Paragraph 33

-URI http://asc.fasb.org/extlink&oid=35738203&loc=SL6953676-111524

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