Property, Plant and Equipment, Net (Tables)

3 Months Ended

Mar. 31, 2016

Property, Plant and Equipment, Net

Components of property, plant and equipment

	March 31,		December 31,
	2016		2015
Property, plant and equipment:
Machinery and equipment	$	41,059	$	40,899
Less: accumulated depreciation and amortization		(36,903)		(36,044)
Building		30,585		30,388
Less: accumulated depreciation and amortization		(9,518)		(9,170)
Leasehold improvements		5,087		5,059
Less: accumulated depreciation and amortization		(3,448)		(3,306)
Construction in progress		4,279		3,596
	$	31,141	$	31,422