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Condensed Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Income Statement [Abstract]
Net revenues	$ 54,815	$ 37,270	$ 108,309	$ 85,554
Cost of net revenues	39,492	33,283	80,352	71,499
Gross profit	15,323	3,987	27,957	14,055
Operating costs and expenses:
Research and development	9,690	8,540	20,448	17,158
Sales and marketing	4,231	3,031	8,455	7,026
General and administrative	8,988	4,423	14,352	9,499
Amortization of purchased intangible assets	656	141	823	281
Restructuring charges	0	5,250	(164)	6,416
Total operating costs and expenses	23,565	21,385	43,914	40,380
Operating loss	(8,242)	(17,398)	(15,957)	(26,325)
Other income (expense):
Interest income (expense), net	(838)	20	(912)	35
Other expense, net	(66)	(13)	(83)	(57)
Loss before income taxes	(9,146)	(17,391)	(16,952)	(26,347)
Income tax provision	74	24	94	49
Net loss	$ (9,220)	$ (17,415)	$ (17,046)	$ (26,396)
Per share data:
Basic and diluted ($ per share)	$ (0.17)	$ (0.51)	$ (0.34)	$ (0.77)
Weighted average shares used in computation of basic and diluted net loss per share:
Basic and diluted (in shares)	53,403	34,320	49,852	34,246

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