4. PROPERTY, PLANT AND EQUIPMENT

12 Months Ended

Dec. 31, 2020

Property, Plant and Equipment [Abstract]

PROPERTY, PLANT AND EQUIPMENT

NOTE 4: PROPERTY, PLANT AND EQUIPMENT

Property, plant and equipment consisted of the following:

							Range of
	December 31, 2020			December 31, 2019			Asset Lives
Buildings and improvements	$	285		$	285		7 - 36 years
Leasehold improvements		906			896		2 - 5 years
Equipment		12,343			17,887		2 - 30 years
Furniture, computers and office equipment		907			901		2 - 8 years
Construction in progress		84			64		–
Total property, plant and equipment		14,525			20,033
Less: Accumulated depreciation		(11,921	)		(12,069	)
Property, plant and equipment, net	$	2,604		$	7,964

Depreciation expense included in cost of sales in the accompanying consolidated statements of operations was $830 and $1,105 for the years ended December 31, 2020 and 2019, respectively. Depreciation expense excluded from cost of sales in the accompanying consolidated statements of operations was $252 and $276 for the years ended December 31, 2020 and 2019, respectively.

Construction in progress represents assets that are not ready for service or are in the construction stage. Assets are depreciated once they are placed in service.

See discussion in Note 1 for any impairment charges related to these assets.