Fair Value (Details) (Recurring, USD $) In Thousands, unless otherwise specified	Sep. 30, 2013	Dec. 31, 2012
Level 2
Assets:
Other long-term assets	$ 1,076	$ 491
Total Assets	1,076	491
Liabilities:
Long term debt	111,237	110,566
Other long-term liabilities-
Interest rate swaps	350	544
Total Liabilities	115,174	111,110
Level 3 | Trynex
Other long-term liabilities-
Earnout - Trynex	$ 3,587