ACCRUED EXPENSES (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Accrued Liabilities [Abstract]
Accrued payroll	$ 3,286	$ 3,362
Accrued bonus	958	1,493
Accrued vacation & holiday	3,516	3,257
Accrued employee benefits	1,847	1,815
Accrued operating lease obligations	2,002	1,706
Contingent consideration	0	7,950
Accrued professional fees	1,253	754
Loss reserve on long-term production contracts	3,165	0
Other	3,055	3,366
Total accrued expenses	$ 19,082	$ 23,703