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CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS (unaudited) - USD ($) shares in Thousands, $ in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2016 | Mar. 31, 2015
Revenues: |  |
License and collaborative fees | $ 2,491 | $ 263
Contract and other | 1,471 | 2,388
Total revenues | 3,962 | 2,651
Operating expenses: |  |
Research and development | 13,610 | 20,004
Selling, general and administrative | 4,305 | 5,220
Restructuring | 36 |
Total operating expenses | 17,951 | 25,224
Loss from operations | (13,989) | (22,573)
Other income (expense): |  |
Interest expense | (1,002) | (1,115)
Other income (expense), net | (306) | 2,010
Revaluation of contingent warrant liabilities | 6,932 | (40)
Net loss | $ (8,365) | $ (21,718)
Basic and diluted net loss per share of common stock | $ (0.07) | $ (0.19)
Shares used in computing basic and diluted net loss per share of common stock | 119,568 | 116,193
Other comprehensive loss: |  |
Net loss | $ (8,365) | $ (21,718)
Net unrealized loss on marketable securities | (42) |
Comprehensive loss | $ (8,407) | $ (21,718)

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- Definition The amount of net income or loss for the period per each share in instances when basic and diluted earnings per share are the same amount and reported as a single line item on the face of the financial statements. Basic earnings per share is the amount of net income or loss for the period per each share of common stock or unit outstanding during the reporting period. Diluted earnings per share includes the amount of net income or loss for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period. + References No definition available. + Details
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- Definition Revenue from multiple-deliverable arrangements that include licensing fees and services revenue. Licensing revenue is consideration received from another party for the right to use, but not own, certain of the entity's intangible assets. Licensing arrangements include, but are not limited to, rights to use a patent, copyright, technology, manufacturing process, software or trademark. Licensing fees are generally, but not always, fixed as to amount and not dependent upon the revenue generated by the licensing party. An entity may receive licensing fees for licenses that also generate royalty payments to the entity. Services revenue may be derived by providing other, nonspecified, services during the reporting period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.1(d),(e)) -URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688 + Details
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