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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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