Property, Plant and Equipment (Tables)

12 Months Ended

Dec. 31, 2019

Property, Plant and Equipment [Abstract]

Schedule of property, plant and equipment

	December 31,
	2019			2018
Land	$	-		$	1,000
Building		-			3,361
Machinery and equipment		10,620			10,636
Furniture and fixtures		440			440
Office equipment		2,456			2,401
Building improvements		103			1,458
		13,619			19,296
Less:  Accumulated depreciation and amortization		(13,227	)		(16,406	)
	$	392		$	2,890