4. PROPERTY, PLANT AND EQUIPMENT

12 Months Ended

Dec. 31, 2016

Property, Plant and Equipment [Abstract]

PROPERTY, PLANT AND EQUIPMENT

Property, plant and equipment consisted of the following:

	December 31, 2016			December 31, 2015			Range of Asset Lives
Land	$	–		$	1,582		-
Buildings and improvements		5			1,447		7 - 36 years
Leasehold improvements		908			825		2 - 5 years
Equipment		16,360			15,435		2 - 30 years
Furniture, computers and office equipment		1,274			1,468		2 - 8 years
Construction in progress		586			341		-
Total property, plant and equipment		19,133			21,098
Less: Accumulated depreciation and amortization		(11,195	)		(10,336	)
Property, plant and equipment, net	$	7,938		$	10,762

Depreciation expense excluded from cost of sales in the accompanying consolidated statements of operations was $134 and $187 for the years ended December 31, 2016 and 2015, respectively. Depreciation expense included in cost of sales in the accompanying consolidated statements of operations was $1,335 and $1,499 for the years ended December 31, 2016 and 2015, respectively.

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