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Federal Home Loan Bank Stock (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2012	Dec. 31, 2011
Federal Home Loan Bank Stock [Abstract]
Federal Home Loan Bank stock	$ 32,894	$ 23,516
Minimum required capital-to-assets ratio of FHLB	4.00%
Capital ratio of FHLB		7.40%

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- Definition

Capital ratio of FHLB is a measure of a bank's capital strength used by U.S. regulatory agencies.

+ References

No definition available.

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- Definition

Minimum required capital to assets ratio of FHLB.

+ References

No definition available.

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- Definition

Federal Home Loan Bank (FHLB) stock represents an equity interest in a FHLB. It does not have a readily determinable fair value because its ownership is restricted and it lacks a market (liquidity).

+ References

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

-Publisher AICPA

-Name Audit and Accounting Guide (AAG)

-Number AAG-DEP

-Chapter 12

-Paragraph 26

-IssueDate 2006-05-01

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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.



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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 942

-SubTopic 325

-Section 45

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6478792&loc=d3e63345-112809

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