Debt (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012	Nov. 08, 2012
Short-term Debt [Abstract]
Short-term debt	$ 713	$ 778
Long-term Debt, by Current and Noncurrent [Abstract]
Long-term debt	146,897	137,750
Less portion due within one year	(8,943)	(8,943)
Long-term debt, excluding current maturities	137,954	128,807
Due to Related Parties, Noncurrent [Abstract]
10% Subordinated Notes, net of unamortized discount	0	19,916
Total long-term debt	137,954	148,723
Total debt	147,610	158,444
Loans Payable [Member] | Senior Notes [Member]
Long-term Debt, by Current and Noncurrent [Abstract]
Long-term debt	112,844	115,000
Less portion due within one year			(2,200)
Revolving Credit Facility [Member]
Long-term Debt, by Current and Noncurrent [Abstract]
Long-term debt	22,000	0
Subordinated Notes [Member]
Long-term Debt, by Current and Noncurrent [Abstract]
Long-term debt	0	9,440
Due to Related Parties, Noncurrent [Abstract]
10% Subordinated Notes, net of unamortized discount	0	19,916
Foreign Line of Credit [Member]
Long-term Debt, by Current and Noncurrent [Abstract]
Long-term debt	3,535	4,713
Mortgages [Member]
Long-term Debt, by Current and Noncurrent [Abstract]
Long-term debt	8,518	8,597
Collateralized Mortgage Backed Securities [Member]
Short-term Debt [Abstract]
Short-term debt	$ 713	$ 778