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Securities - Maturities of Securities and Their Weighted Average Yields (Detail) (USD $)	Dec. 31, 2013	Dec. 31, 2012
Schedule of Available-for-sale Securities [Line Items]
Weighted Average Yield	3.73%
Amortized Cost	$ 139,487,000	$ 134,664,000
Available for sale securities/Fair Value	131,178,000	138,314,000
Due in one year or less [Member]
Schedule of Available-for-sale Securities [Line Items]
Weighted Average Yield	5.32%
Amortized Cost	2,444,000
Available for sale securities/Fair Value	2,494,000
Due from one to five years [Member]
Schedule of Available-for-sale Securities [Line Items]
Weighted Average Yield	6.31%
Amortized Cost	1,018,000
Available for sale securities/Fair Value	1,047,000
Due from five to ten years [Member]
Schedule of Available-for-sale Securities [Line Items]
Weighted Average Yield	3.13%
Amortized Cost	32,373,000
Available for sale securities/Fair Value	31,008,000
Due after ten years [Member]
Schedule of Available-for-sale Securities [Line Items]
Weighted Average Yield	3.68%
Amortized Cost	89,810,000
Available for sale securities/Fair Value	81,716,000
Mortgage-backed securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Weighted Average Yield	5.17%
Amortized Cost	12,456,000	20,182,000
Available for sale securities/Fair Value	13,558,000	21,996,000
Mutual funds [Member]
Schedule of Available-for-sale Securities [Line Items]
Weighted Average Yield	2.32%
Amortized Cost	1,386,000	1,354,000
Available for sale securities/Fair Value	$ 1,355,000	$ 1,405,000

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- Definition

Weighted average yield of securities portfolio.

+ References

No definition available.

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- Definition

Amount of investment in debt and equity securities categorized neither as held-to-maturity nor trading.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 320

-SubTopic 10

-Section 25

-Paragraph 1

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=28360136&loc=d3e22054-111558



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 320

-SubTopic 10

-Section 50

-Paragraph 5

-Subparagraph (aa)

-URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27232-111563



Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 320

-SubTopic 10

-Section 45

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6871852&loc=d3e26610-111562

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- Definition

This item represents the cost of debt and equity securities, which are categorized neither as held-to-maturity nor trading, net of adjustments including accretion, amortization, collection of cash, previous other-than-temporary impairments recognized in earnings (less any cumulative-effect adjustments recognized, as defined), and fair value hedge accounting adjustments, if any.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.2)

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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