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Fair Value Information (Details Textual)	3 Months Ended
	Mar. 31, 2012
Fair Value Information (Additional Textual) [Abstract]
Percentage of cost to sale of non-covered impaired loans and non-covered other real estate owned	8.00%
Maximum [Member]
Fair Value Information (Textual) [Abstract]
Term of interest rate swap contracts by the counterparty, years	30 years
Minimum [Member]
Fair Value Information (Textual) [Abstract]
Term of interest rate swap contracts by the counterparty, years	3 years

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- Definition

Percentage of cost to sale of non-covered impaired loans and non-covered other real estate owned.

+ References

No definition available.

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- Definition

Term of interest rate swap contracts by counter party.

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No definition available.

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