Junior Subordinated Debentures and Other Borrowings (Details) (USD $)			0 Months Ended	6 Months Ended	0 Months Ended
	Jun. 30, 2013	Dec. 31, 2012	Mar. 17, 2004 Floating Rate Junior Subordinated Debentures	Jun. 30, 2013 Floating Rate Junior Subordinated Debentures	Feb. 28, 2010 Line of Credit	Jun. 30, 2013 Line of Credit
Junior subordinated debentures and other borrowings
Face amount of debt issued	$ 6,000,000	$ 6,000,000	$ 6,000,000
Maturity of debentures			10 years
Interest rate margin on debentures (as a percent)				2.54%
Debt instrument interest rate description				3-month LIBOR
Effective interest rate on debentures (as a percent)				2.81%
Line of credit outstanding	5,000,000				5,000,000
Line of credit borrowing capacity					5,000,000
Minimum interest rate on line of credit (as a percent)					6.00%
Increase in interest rate in event of default (as a percent)					5.00%
Accrued interest	$ 2,308,000	$ 1,941,000		$ 540,000		$ 1,700,000