Notes Payable and Long-Term Debt (Schedule of Long-Term Debt) (Details) (USD $) In Thousands, unless otherwise specified	0 Months Ended			9 Months Ended		9 Months Ended		0 Months Ended	9 Months Ended		0 Months Ended	9 Months Ended
	Mar. 19, 2009	Sep. 30, 2012	Dec. 31, 2011	Sep. 30, 2012 Line of Credit, Secured Debt [Member]	Dec. 31, 2011 Line of Credit, Secured Debt [Member]	Sep. 30, 2012 Promissory Note, Unsecured Debt [Member]	Dec. 31, 2011 Promissory Note, Unsecured Debt [Member]	Dec. 15, 2005 Trust Preferred Security Offering, 2005 [Member]	Sep. 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]	Sep. 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, Percentage Bearing Variable Interest, Percentage Rate				4.50%
Long-term debt		$ 24,906	$ 12,372	$ 2,034	$ 0	$ 10,500	$ 0		$ 9,279	$ 9,279		$ 3,093	$ 3,093
Fixed interest rate								8.83%
Description of variable rate basis	three-month LIBOR			prime		prime		3-month LIBOR			3-month LIBOR
Basis spread on variable rate	3.40%					1.00%		3.75%						3.40%
Payment terms				Interest payments due monthly.		Annual installment payments.			Interest payments due quarterly.			Interest payments due quarterly.