Allowance for Loan Losses - Schedule of Troubled Debt Restructurings (Detail) (USD $) In Thousands, unless otherwise specified	6 Months Ended
Jun. 30, 2014 Contract	Jun. 30, 2013 Contract
Financing Receivable, Recorded Investment, Past Due [Line Items]
Number of Contracts	2	1
Pre-Modification Outstanding Recorded Investment	$ 149	$ 125
Post-Modification Outstanding Recorded Investment	149	125
Commercial Real Estate [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Number of Contracts		1
Pre-Modification Outstanding Recorded Investment		125
Post-Modification Outstanding Recorded Investment		125
Residential Real Estate [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Number of Contracts	2
Pre-Modification Outstanding Recorded Investment	149
Post-Modification Outstanding Recorded Investment	$ 149

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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Post-modification amount of investment in financing receivables modified by troubled debt restructurings.

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