Condensed Consolidated Statements of Operations (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Income Statement [Abstract]
Revenue	$ 35,203	$ 34,670
Cost of revenue	25,550	24,367
Gross profit	9,653	10,303
Operating expenses:
Selling, general and administrative	10,098	10,957
Research and development	5,607	7,918
Restructuring and exit costs	188	0
Total operating expenses	15,893	18,875
Loss from operations	(6,240)	(8,572)
Interest expense, net	70	94
Other income	(84)	0
Foreign currency exchange loss, net	139	328
Loss before income taxes	(6,365)	(8,994)
Income tax provision	483	347
Net loss	$ (6,848)	$ (9,341)
Net loss per share:
Basic and diluted (in dollars per share)	$ (0.22)	$ (0.32)
Weighted average common shares outstanding:
Basic and diluted (in shares)	31,650	29,445