Property, Plant and Equipment

3 Months Ended

Mar. 31, 2019

Property, Plant and Equipment [Abstract]

Property, Plant and Equipment

Property, Plant and EquipmentProperty, plant and equipment is comprised of the following:

	As of
	March 31,			December 31,
	2019			2018
Land	$	1,136		$	1,136
Buildings and improvements	69,317			70,522
Machinery and equipment	234,373			231,619
Less: Accumulated depreciation	(205,774		)	(203,876		)
Property, plant and equipment, net	$	99,052		$	99,401
Depreciation expense for the three months ended March 31, 2019				$	4,234
Depreciation expense for the three months ended March 31, 2018				$	3,763