Long-Term Debt (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Long-term debt
Total long-termdebt	$ 41,799	$ 35,163
Less current portion of long-termdebt	(2,190)	(4,112)
Total long-termdebt, non-current	39,609	31,051
Borrowings under the new revolving credit facility (the New Credit Agreement) [Member]
Long-term debt
Total long-termdebt	39,300
Borrowings under the previous revolving credit facility (the Previous Credit Agreement) [Member]
Long-term debt
Total long-termdebt		30,000
Capital leases [Member]
Long-term debt
Total long-termdebt	45	68
Notes payable (the Notes) [Member]
Long-term debt
Total long-termdebt	1,010	5,095
Other debt [Member]
Long-term debt
Total long-termdebt	$ 1,444