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CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS (unaudited) (USD $) In Thousands, except Per Share data, unless otherwise specified | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2014 | Sep. 30, 2013 | Sep. 30, 2014 | Sep. 30, 2013
Revenues: |  |  |  |
License and collaborative fees | $ 2,450 | $ 1,574 | $ 4,615 | $ 2,578
Contract and other | 2,686 | 4,738 | 9,903 | 20,339
Total revenues | 5,136 | 6,312 | 14,518 | 22,917
Operating expenses: |  |  |  |
Research and development | 20,235 | 18,198 | 61,371 | 51,905
Selling, general and administrative | 5,354 | 5,225 | 15,768 | 13,429
Restructuring | 0 | 112 | 84 | 209
Total operating expenses | 25,589 | 23,535 | 77,223 | 65,543
Loss from operations | (20,453) | (17,223) | (62,705) | (42,626)
Other (expense) income, net: |  |  |  |
Interest expense | (1,060) | (1,159) | (3,295) | (3,495)
Other income (expense), net | 1,393 | (132) | 1,332 | 92
Revaluation of contingent warrant liabilities | 5,721 | (11,125) | 33,685 | (25,745)
Net loss before taxes | (14,399) | (29,639) | (30,983) | (71,774)
Provision for income tax benefit | 0 | 15 | 0 | 15
Net loss | (14,399) | (29,624) | (30,983) | (71,759)
Basic net loss per share of common stock (in shares) | $ (0.13) | $ (0.34) | $ (0.29) | $ (0.85)
Diluted net loss per share of common stock (in shares) | $ (0.17) | $ (0.34) | $ (0.55) | $ (0.85)
Shares used in computing basic net loss per share of common stock (in shares) | 107,208 | 87,033 | 106,768 | 84,205
Shares used in computing diluted net loss per share of common stock | 114,323 | 87,033 | 114,876 | 84,205
Other comprehensive loss: |  |  |  |
Net loss | (14,399) | (29,624) | (30,983) | (71,759)
Net unrealized (loss) gain on available-for-sale securities | (2) | 0 | 5 | 0
Comprehensive loss | $ (14,401) | $ (29,624) | $ (30,978) | $ (71,759)

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