Notes Payable and Long-Term Debt (Schedule of Long-Term Debt) (Details) (USD $) In Thousands, unless otherwise specified				0 Months Ended	6 Months Ended		0 Months Ended	6 Months Ended
	Jun. 30, 2012	Dec. 31, 2011	Mar. 19, 2009	Dec. 15, 2005 Trust Preferred Security Offering, 2005 [Member]	Jun. 30, 2012 Trust Preferred Security Offering, 2005 [Member]	Dec. 31, 2011 Trust Preferred Security Offering, 2005 [Member]	Jun. 21, 2007 Trust Preferred Security Offering, 2007 [Member]	Jun. 30, 2012 Trust Preferred Security Offering, 2007 [Member]	Dec. 31, 2011 Trust Preferred Security Offering, 2007 [Member]	Dec. 15, 2005 Trust Preferred Security Offering, 2007 [Member]
Debt Instrument [Line Items]
Long-term debt	$ 12,372	$ 12,372			$ 9,279	$ 9,279		$ 3,093	$ 3,093
Fixed interest rate				8.83%
Description of variable rate basis				3-month LIBOR			3-month LIBOR
Basis spread on variable rate			3.40%	3.75%						3.40%
Payment terms					Interest payments due quarterly.			Interest payments due quarterly.