4. PROPERTY, PLANT AND EQUIPMENT (Tables)

12 Months Ended

Dec. 31, 2019

Property, Plant and Equipment [Abstract]

Net Property, plant and equipment

Property, plant and equipment consisted of the following:

							Range of
	December 31, 2019			December 31, 2018			Asset Lives
Buildings and improvements	$	285		$	285			7 - 36 years
Leasehold improvements		896			908			2 - 5 years
Equipment		17,887			18,640			2 - 30 years
Furniture, computers and office equipment		901			1,166			2 - 8 years
Construction in progress		64			158			–
Total property, plant and equipment		20,033			21,157
Less: Accumulated depreciation		(12,069	)		(11,466	)
Property, plant and equipment, net	$	7,964		$	9,691