PROPERTY, PLANT AND EQUIPMENT (Details) - USD ($) $ in Thousands	1 Months Ended	3 Months Ended		9 Months Ended
	Jul. 31, 2016	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015	Dec. 31, 2015
Property, plant and equipment [Abstract]
Property, plant and equipment, gross		$ 156,748		$ 156,748		$ 153,456
Accumulated depreciation		(104,675)		(104,675)		(95,845)
Property, plant and equipment, net		52,073		52,073		57,611	[1]
Consideration received from sale of property	$ 2,100			2,129	$ 31
Gain on sale of property		2,100
Depreciation expense		3,700	$ 3,800	11,100	$ 11,900
Maximum [Member]
Property, plant and equipment [Abstract]
Property, plant and equipment, net	$ 100
Land [Member]
Property, plant and equipment [Abstract]
Property, plant and equipment, gross		2,245		2,245		2,240
Buildings and Improvements [Member]
Property, plant and equipment [Abstract]
Property, plant and equipment, gross		30,833		30,833		29,346
Machinery and Equipment [Member]
Property, plant and equipment [Abstract]
Property, plant and equipment, gross		120,572		120,572		116,921
Construction in Progress [Member]
Property, plant and equipment [Abstract]
Property, plant and equipment, gross		$ 3,098		$ 3,098		$ 4,949

[1] (Revised)