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Consolidated Statements of Comprehensive Income (USD $) In Thousands, except Per Share data, unless otherwise specified | 12 Months Ended
--- | ---
Dec. 31, 2012 | Dec. 31, 2011 | Dec. 31, 2010
Consolidated Statements of Comprehensive Income [Abstract] |  |  |
Revenues | $ 43,329 | $ 57,767 | $ 130,501
Cost of revenues | 8,448 | 13,761 | 15,507
Gross profit | 34,881 | 44,006 | 114,994
Operating expenses: |  |  |
Selling and marketing | 16,666 | 26,594 | 29,708
Research and development | 24,767 | 41,711 | 42,759
General and administrative | 20,211 | 25,279 | 24,146
Restructuring expenses | 238 | 3,184 |
Goodwill and long-lived asset impairment |  | 112,904 |
Total operating expenses | 61,882 | 209,672 | 96,613
Operating income (loss) | (27,001) | (165,666) | 18,381
Non-operating income: |  |  |
Change in fair value of contingent liability | 1,210 |  |
Interest and other income, net | 94 | 131 | 130
Income (loss) before provision for income taxes | (25,697) | (165,535) | 18,511
Provision for income tax expense (benefit) | (234) | (5,929) | 6,165
Net income (loss) | (25,463) | (159,606) | 12,346
Other comprehensive income (loss), before tax: |  |  |
Unrealized holding gains (losses) on available-for-sale securities | 33 | (24) | (14)
Income tax expense (benefit) related to items of other comprehensive income (expense) | 6 | 1 | (6)
Other comprehensive income (expense), net of tax | 27 | (25) | (8)
Comprehensive income (loss) | $ (25,436) | $ (159,631) | $ 12,338
Net income (loss) per share: |  |  |
Basic | $ (0.71) | $ (4.48) | $ 0.36
Diluted | $ (0.71) | $ (4.48) | $ 0.36
Weighted average shares outstanding: |  |  |
Basic | 35,849 | 35,617 | 34,204
Diluted | 35,849 | 35,617 | 34,615

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