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Securities - Additional Information (Detail) $ in Thousands	Sep. 30, 2015 USD ($) Security	Dec. 31, 2014 USD ($)
Amortized Cost and Fair Value Debt Securities [Abstract]
Carrying value of pledged securities	$ 148,557	$ 137,898
Number of securities in portfolio with unrealized losses | Security	30

X

- Definition

Amortized Cost and Fair Value Debt Securities [Abstract]

+ References

No definition available.

+ Details

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X

- Definition

Total number of securities in the portfolio with unrealized losses.

+ References

No definition available.

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X

- 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=49124121&loc=d3e5086-111524

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