Fair Value of Financial Instruments (Details 2) (Fair Value, Measurements, Nonrecurring [Member], USD $) In Thousands	Jun. 30, 2011	Dec. 31, 2010
Major class of assets with a recorded change remeasured at fair value on a non-recurring basis
Other real estate owned	$ 13,378	$ 17,492
Collateral-dependent impaired loans, net of allowance for loan and lease losses	37,959	47,283
Total financial assets	51,337	64,775
Quoted Prices in Active Markets for Identical Assets (Level 1)
Major class of assets with a recorded change remeasured at fair value on a non-recurring basis
Other real estate owned	0	0
Collateral-dependent impaired loans, net of allowance for loan and lease losses	0	0
Total financial assets	0	0
Significant Other Observable Inputs (Level 2)
Major class of assets with a recorded change remeasured at fair value on a non-recurring basis
Other real estate owned	0	0
Collateral-dependent impaired loans, net of allowance for loan and lease losses	0	0
Total financial assets	0	0
Significant Unobservable Inputs (Level 3)
Major class of assets with a recorded change remeasured at fair value on a non-recurring basis
Other real estate owned	13,378	17,492
Collateral-dependent impaired loans, net of allowance for loan and lease losses	37,959	47,283
Total financial assets	$ 51,337	$ 64,775