Goodwill and Intangibles - Summary of Core Deposit Intangible Assets (Detail) (Core Deposits [Member], USD $)	12 Months Ended
Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Core Deposits [Member]
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	$ 1,385,000	$ 1,762,000
Core deposit intangibles acquired during the year
Less amortization	(332,000)	(377,000)	(318,000)
Total core deposit intangible asset	$ 1,053,000	$ 1,385,000

Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

-SubTopic 30

-Section 50

-Paragraph 2

-Subparagraph (a)(1)

-URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16323-109275

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- Definition

Amount of increase in assets, excluding financial assets, lacking physical substance with a definite life, resulting from a business combination.

+ References

No definition available.

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- Definition

Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

+ References

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- Definition

Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

+ References

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