Condensed Consolidated Statements of Operations (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Income Statement [Abstract]
Revenue	$ 26,686	$ 35,203
Cost of revenue	20,495	25,550
Gross profit	6,191	9,653
Operating expenses:
Selling, general and administrative	9,540	10,098
Research and development	4,686	5,607
Restructuring and exit costs	997	188
Total operating expenses	15,223	15,893
Loss from operations	(9,032)	(6,240)
Interest expense, net	63	70
Other income	(1)	(84)
Foreign currency exchange loss, net	97	139
Loss before income taxes	(9,191)	(6,365)
Income tax provision	1,208	483
Net loss	$ (10,399)	$ (6,848)
Net loss per share
Basic and diluted (in dollars per share)	$ (0.32)	$ (0.22)
Weighted average common shares outstanding:
Basic and diluted (in shares)	32,197	31,650