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Commitments and Contingencies (Narrative) (Details) (USD $)	6 Months Ended
	Jun. 30, 2011	Dec. 31, 2010	Jun. 30, 2010
Commitments and Contingencies
Unused commitments	$ 5,801,539	$ 5,364,451	$ 5,233,707
Standby letters of credit	69,969	70,755	77,681
Recourse period, maximum, in days	120
Loans sold with recourse	$ 147,572	$ 253,347	$ 200,615

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Commitments and Contingencies [Abstract]

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Letters Of Credit Outstanding Amount

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Loans Sold With Recourse

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Recourse Period Maximum

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Unused Commitments

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