Loans Receivable and Allowance for Loan Losses (Schedule of Troubled Debt Restructurings) (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended
Mar. 31, 2015 SecurityLoan	Mar. 31, 2014 SecurityLoan
Residential [Member]
Financing Receivable, Recorded Investment [Line Items]
Number of Loans	2	4
Pre-Modification Outstanding Recorded Investment	$ 322	$ 875
Post-Modification Outstanding Recorded Investment	321	835
Construction [Member]
Financing Receivable, Recorded Investment [Line Items]
Number of Loans	1	0
Pre-Modification Outstanding Recorded Investment	2,600	0
Post-Modification Outstanding Recorded Investment	347	0
Mortgage Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Number of Loans	3	4
Pre-Modification Outstanding Recorded Investment	2,922	875
Post-Modification Outstanding Recorded Investment	668	835
Commercial Loan [Member]
Financing Receivable, Recorded Investment [Line Items]
Number of Loans	4	1
Pre-Modification Outstanding Recorded Investment	6,659	116
Post-Modification Outstanding Recorded Investment	6,898	28
Consumer Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Number of Loans	1	0
Pre-Modification Outstanding Recorded Investment	44	0
Post-Modification Outstanding Recorded Investment	42	0
Total Restructured Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Number of Loans	8	5
Pre-Modification Outstanding Recorded Investment	9,625	991
Post-Modification Outstanding Recorded Investment	$ 7,608	$ 863

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

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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