Property, Plant and Equipment, Net (Tables)

6 Months Ended

Jun. 30, 2017

Property, Plant and Equipment, Net

Components of property, plant and equipment

	June 30,		December 31,
	2017		2016
Property, plant and equipment:
Machinery and equipment, at cost	$	42,027	$	41,254
Less: accumulated depreciation and amortization		(38,961)		(37,311)
Building, at cost		30,333		29,600
Less: accumulated depreciation and amortization		(10,465)		(9,654)
Leasehold improvements, at cost		5,048		4,942
Less: accumulated depreciation and amortization		(3,917)		(3,608)
Construction in progress		3,880		2,582
	$	27,945	$	27,805