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CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE LOSS (USD $) In Thousands, except Per Share data, unless otherwise specified | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2012 | Jun. 30, 2011 | Jun. 30, 2012 | Jun. 30, 2011
Net revenue |  |  |  |
Licensing and other | $ 644 | $ 1,216 | $ 865 | $ 2,563
Royalty | 1,092 | 2,076 | 2,295 | 4,268
Total net revenue | 1,736 | 3,292 | 3,160 | 6,831
Cost of net revenue |  |  |  |
Licensing and other | 179 | 469 | 236 | 1,159
Total cost of net revenue | 179 | 469 | 236 | 1,159
Gross profit | 1,557 | 2,823 | 2,924 | 5,672
Operating expenses |  |  |  |
Research and development | 6,688 | 6,566 | 14,194 | 12,721
Selling, general and administrative | 1,428 | 1,917 | 4,354 | 4,631
Gain on sale of assets |  |  | (1,856) |
Total operating expenses | 8,116 | 8,483 | 16,692 | 17,352
Loss from operations | (6,559) | (5,660) | (13,768) | (11,680)
Other income and expense, net | 36 | 25 | 60 | 34
Loss before income taxes | (6,523) | (5,635) | (13,708) | (11,646)
Income tax provision | 30 | 17 | 60 | 35
Net loss | (6,553) | (5,652) | (13,768) | (11,681)
Other comprehensive loss, net of tax: |  |  |  |
Net unrealized gains (losses) on available-for-sale securities | 11 | 16 | (2) | 8
Comprehensive loss | $ (6,542) | $ (5,636) | $ (13,770) | $ (11,673)
Net loss per share |  |  |  |
Basic and diluted (in dollars per share) | $ (0.17) | $ (0.15) | $ (0.36) | $ (0.31)
Shares used in computing net loss per share |  |  |  |
Basic and diluted (in shares) | 38,880 | 37,738 | 38,723 | 37,505

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