PROPERTY, PLANT AND EQUIPMENT (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Dec. 31, 2015
Property, plant and equipment
Property, plant and equipment, gross	$ 61,115		$ 57,180
Less accumulated depreciation	(23,512)		(21,865)
Property, plant and equipment, net	37,603		35,315
Depreciation expense	1,491	$ 1,145
Land
Property, plant and equipment
Property, plant and equipment, gross	979		970
Building and improvements
Property, plant and equipment
Property, plant and equipment, gross	9,866		9,771
Machinery, equipment, tools and dies
Property, plant and equipment
Property, plant and equipment, gross	40,923		37,782
Furniture, fixtures and other
Property, plant and equipment
Property, plant and equipment, gross	$ 9,347		$ 8,657