Maximum Percentage Of Stockholders Equity Exceeded For Securities Of Any Individual Issuer

No definition available.

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- Definition

Number Of Investment Securities Owned

+ References

No definition available.

+ Details

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- Definition

Number Of Securities In Continuous Unrealized Loss Position 12 Months Or Longer

+ 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=28368275&loc=d3e5086-111524

+ Details

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- Definition

The amount by which the fair value of an investment in debt securities categorized as Held-to-maturity is less than the amortized cost basis or carrying amount of that investment at the balance sheet date and the decline in fair value is deemed to be other than temporary, before considering whether or not such amount is recognized in earnings or other comprehensive income.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 320

-SubTopic 10

-Section 50

-Paragraph 5

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

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Investment securities - Additional Information (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended		12 Months Ended
	Mar. 31, 2014 Security	Mar. 31, 2013	Dec. 31, 2013 Security
Schedule of Available-for-sale Securities [Line Items]
Carrying value of securities pledged	$ 205,549		$ 202,407
Number of investment securities held	114		153
Other-than-temporary impairments recognized	$ 0	$ 0
U.S. Government-Sponsored Enterprises [Member]
Schedule of Available-for-sale Securities [Line Items]
Maximum percentage of stockholders' equity exceeded for securities of any individual issuer	10.00%		10.00%
Number of investment securities held	32		39
Number of securities in continuous unrealized loss positions 12 months or longer	1		1
State and Municipals, Tax-Exempt [Member]
Schedule of Available-for-sale Securities [Line Items]
Number of investment securities held	54		79
State and Municipals, Taxable [Member]
Schedule of Available-for-sale Securities [Line Items]
Number of investment securities held	6		16
Mortgage-backed Securities, Issued by U.S. Government Agencies [Member]
Schedule of Available-for-sale Securities [Line Items]
Number of investment securities held	19		15
Corporate Debt Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Number of investment securities held	1		1
U.S. Government Agencies [Member]
Schedule of Available-for-sale Securities [Line Items]
Number of investment securities held	1		1
Common Stock [Member]
Schedule of Available-for-sale Securities [Line Items]
Number of investment securities held	1		2