4. PROPERTY, PLANT AND EQUIPMENT (Tables)

6 Months Ended

Jun. 30, 2019

Property, Plant and Equipment [Abstract]

Property, plant and equipment

	June 30,			December 31,			Range of
	2019			2018			Asset Lives
Buildings and improvements	$	285		$	285		7 - 36 years
Leasehold improvements		896			908		2 - 5 years
Equipment		18,714			18,640		2 - 30 years
Furniture, computers and office equipment		902			1,166		2 - 8 years
Construction in progress		49			158
Total property, plant and equipment		20,846			21,157
Less: Accumulated depreciation and amortization		(11,852	)		(11,466	)
Property, plant and equipment, net	$	8,994		$	9,691