Advances From Federal Home Loan Bank (Detail) - Schedule Of Federal Home Loan Bank, Advances, Fiscal Year Maturity (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012
2013 (in Dollars)	$ 0
2013	0.00%
2014 (in Dollars)	0
2014	0.00%
2015 (in Dollars)	33,000
2015	3.75%
2016 (in Dollars)	125,000
2016	3.83%
2017 (in Dollars)	50,000
2017	4.40%
2018 (in Dollars)	25,000
2018	2.66%
Total (in Dollars)	$ 233,000
Total	3.81%

Advances From Federal Home Loan Banks Rate.

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Advances From Federal Home Loan Banks Rate Due in Year Five.

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Advances From Federal Home Loan Banks Rate Due in Year Four.

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Rates on advances from FHLB due in year six

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Advances From Federal Home Loan Banks Rate Due in Year Three.

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Advances From Federal Home Loan Banks Rate Due in Year Two.

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Advances From Federal Home Loan Banks Rate within one year.

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FHLB advance due in year six

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FHLB advance maturity summary

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Amount of federal home loan bank advances maturing in the fifth fiscal year following the latest fiscal year.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 470

-SubTopic 10

-Section 50

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6802200&loc=d3e1835-112601

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 942

-SubTopic 470

-Section 45

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6479118&loc=d3e64650-112822

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-Publisher AICPA

-Name Statement of Position (SOP)

-Number 01-6

-Paragraph 14

-Subparagraph f

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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-Publisher AICPA

-Name Audit and Accounting Guide (AAG)

-Number AAG-DEP

-Paragraph 17, 37

-IssueDate 2006-05-01

-Chapter 15

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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Amount of federal home loan bank advances maturing in the second fiscal year following the latest fiscal year.

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Amount of federal home loan bank advances maturing in the fourth fiscal year following the latest fiscal year.

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Amount of federal home loan bank advances maturing in the third fiscal year following the latest fiscal year.

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Amount of federal home loan bank advances maturing in the remainder of the fiscal year following the latest fiscal year ended.

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