Disclosures About Fair Value of Financial Instruments (Details 3) (USD $) In Thousands, unless otherwise specified	6 Months Ended
Jun. 30, 2012
Fair Value Estimate [Member]
Summary of financial assets and financial liabilities measured at fair value
Impaired loans	9,725
Other real estate owned	1,276
I/O Strip	2,632
Impaired loans [Member] \| Liquidation expenses [Member] \| Collateral appraisal [Member]
Summary of financial assets and financial liabilities measured at fair value
Minimum	(3.00%)
Maximum	(8.00%)
Weighted Average	(5.50%)
Other real estate owned [Member] \| Liquidation expenses [Member] \| Collateral appraisal [Member]
Summary of financial assets and financial liabilities measured at fair value
Minimum	(3.00%)
Maximum	(8.00%)
Weighted Average	(5.50%)
I/O Strip [Member] \| Prepayment Rate [Member] \| Discounted cash flow [Member]
Summary of financial assets and financial liabilities measured at fair value
Fair Value Inputs, Prepayment Rate	10.00%
I/O Strip [Member] \| Discount Rate [Member] \| Discounted cash flow [Member]
Summary of financial assets and financial liabilities measured at fair value
Fair Value Inputs, Discount Rate	21.62%

Assets fair value disclosure nonrecurring impaired loans.

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- Definition

I/O Strip.

+ References

No definition available.

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- Definition

Maximum range for unobservable fair value inputs.

+ References

No definition available.

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- Definition

Minimum range for unobservable fair value inputs.

+ References

No definition available.

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- Definition

Weighted average range for unobservable fair value inputs.

+ References

No definition available.

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- Definition

Interest rate used to find the present value of an amount to be paid or received in the future as an input to measure fair value. For example, but not limited to, weighted average cost of capital (WACC), cost of capital, cost of equity and cost of debt.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 820

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (bbb)

-URI http://asc.fasb.org/extlink&oid=7578670&loc=d3e19207-110258

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- Definition

Rate at which loans or a loan portfolio are expected to prepay principal balances, used as an input to measure fair value.

+ References

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- Definition

Carrying amount of other real estate not separately disclosed, including, but not limited to, real estate investments, real estate loans that qualify as investments in real estate, and premises that are no longer used in operations may also be included in real estate owned. This does not include real estate assets taken in settlement of troubled loans through surrender or foreclosure.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 942

-SubTopic 210

-Section S99

-Paragraph 1

-Subparagraph (SX 210.9-03.10(4))

-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

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

-Publisher AICPA

-Name Audit and Accounting Guide (AAG)

-Number AAG-DEP

-Paragraph 12-18

-IssueDate 2006-05-01

-Chapter 11

-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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