Number of securities in an unrealized loss position.

No definition available.

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- Definition

Other than temporary impairment charges incurred.

+ References

No definition available.

+ Details

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- Definition

Percentage of combined depreciation of the combined reported value of the aggregate securities portfolio.

+ References

No definition available.

+ Details

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- Definition

The fair value of available-for-sale securities that serve as collateral for borrowings.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 10

-Section 50

-Paragraph 5

-URI http://asc.fasb.org/extlink&oid=35738203&loc=d3e5086-111524

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- Definition

Amount of unrealized loss on investments in held-to-maturity securities.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 320

-SubTopic 10

-Section 50

-Paragraph 7

-URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27337-111563

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 320

-SubTopic 10

-Section 50

-Paragraph 6

-Subparagraph (a)(2)

-URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27290-111563

+ Details

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Investment Securities - Additional Information (Detail) (USD $)	12 Months Ended
	Dec. 31, 2013 Securities	Dec. 31, 2012	Dec. 31, 2014
Schedule of Available-for-sale Securities [Line Items]
Held-to-maturity securities in continuous unrealized loss position	$ 0	$ 0
Number of securities in an unrealized loss position	219		97
Percentage of combined depreciation of the combined reported value of the aggregate securities portfolio	5.06%		3.21%
Carrying value of available-for-sale securities pledged	284,770,000		268,780,000
Continuous Loss Position More Than Twelve Months
Schedule of Available-for-sale Securities [Line Items]
Number of securities in an unrealized loss position			82
Debt Securities
Schedule of Available-for-sale Securities [Line Items]
OTTI charges incurred	0		0
Non Agency Mortgage Backed Securities
Schedule of Available-for-sale Securities [Line Items]
OTTI charges incurred	320,000		705,000
Equity Securities
Schedule of Available-for-sale Securities [Line Items]
OTTI charges incurred	$ 0		$ 32,000