DEBT OBLIGATIONS (Details) In Thousands, unless otherwise specified			3 Months Ended										3 Months Ended		3 Months Ended
	Mar. 31, 2015 USD ($)	Dec. 31, 2014 USD ($)	Mar. 31, 2015 Senior Credit Facilities USD ($)	Mar. 31, 2015 Senior Credit Facilities Base Rate	Mar. 31, 2015 Senior Credit Facilities Base Rate Minimum	Mar. 31, 2015 Senior Credit Facilities Base Rate Maximum	Mar. 31, 2015 Senior Credit Facilities Eurocurrency Rate	Mar. 31, 2015 Senior Credit Facilities Eurocurrency Rate Minimum	Mar. 31, 2015 Senior Credit Facilities Eurocurrency Rate Maximum	Mar. 31, 2015 Revolving Credit Facility USD ($)	Mar. 31, 2015 Term Loan USD ($)	Dec. 31, 2014 Term Loan USD ($)	Mar. 31, 2015 China Credit Facility USD ($)	Dec. 31, 2014 China Credit Facility USD ($)	Mar. 31, 2015 China Credit Facility Chinese Renminbi ("RMB") CNY	Mar. 31, 2015 Subordinated Notes USD ($)	Dec. 31, 2014 Subordinated Notes USD ($)
Debt Obligations
Current borrowings	$ 8,420	$ 7,723									$ 6,750	$ 6,375	$ 1,670	$ 1,348
Interest rate at period end (as a percent)											2.20%		6.40%
Long-term debt	65,250	67,125									35,250	37,125				30,000	30,000
Effective rate (as a percent)											2.65%
Interest rate (as a percent)																14.50%	14.50%
Interest rate payable in cash (as a percent)																13.00%	13.00%
Interest rate payable in-kind (as a percent)																1.50%	1.50%
Maximum borrowing capacity										15,000	50,000		1,955		12,000
Debt instrument term										5 years	5 years
Principal amount of debt borrowed																30,000
Applicable margin (as a percent)				1.50%	0.25%	2.00%	2.00%	1.25%	3.00%
Average outstanding borrowings			43,000										1,560		9,600
Available borrowing capacity			15,000										290		1,790
Percentage of principal amount of notes that may prepay																100.00%
Maturities of long-term debt
Remainder of 2015	6,545
2016	8,219
2017	10,374
2018	18,532
2019	30,000
Total	$ 73,670