Liabilities Subordinated to Claims of General Creditors (Details) (USD $)	12 Months Ended
	Dec. 31, 2011
Subordinated Borrowings [Abstract]
FairValue_SubordinatedDebt	$ 6,700,000
Subordinateddebtpayment_Total	6,957,000
Subordinateddebtpayment_2014	3,131,000
Subordinateddebtpayment_2013	2,188,000
SubordinatedDebtPayment_2012	$ 1,638,000