3. PROPERTY, PLANT AND EQUIPMENT (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2017	Dec. 31, 2016
Total property, plant and equipment	$ 20,678	$ 19,133
Less: Accumulated depreciation and amortization	(11,927)	(11,195)
Property, plant and equipment,net	8,751	7,938
Building and improvements
Total property, plant and equipment	$ 5	5
Range of Asset lives	7-36 years
Leasehold Improvements
Total property, plant and equipment	$ 908	908
Range of Asset lives	2-5 years
Equipment
Total property, plant and equipment	$ 16,977	16,360
Range of Asset lives	2-30 years
Furniture, computers and office equipment
Total property, plant and equipment	$ 1,245	1,274
Range of Asset lives	2-8 years
Construction in Progress
Total property, plant and equipment	$ 1,543	$ 586