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SELECTED QUARTERLY FINANCIAL INFORMATION (UNAUDITED) | 12 Months Ended
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Dec. 31, 2014
SELECTED QUARTERLY FINANCIAL INFORMATION (UNAUDITED) |
SELECTED QUARTERLY FINANCIAL INFORMATION (UNAUDITED) | 14. SELECTED QUARTERLY FINANCIAL INFORMATION (UNAUDITED)
|  | First Quarter |  | Second Quarter |  | Third Quarter |  | Fourth Quarter |
|  | (In thousands, except per share amounts) |
Year Ended December 31, 2014 |  |  |  |  |  |  |  |  |  |  |  |  |
Revenues |  | $ | 474 |  | $ | 341 |  | $ | 160 |  | $ | 178 |
Operating expenses |  |  | 9,205 |  |  | 9,004 |  |  | 10,067 |  |  | 9,189 |
Net loss |  |  | (8,440 | ) |  | (8,734 | ) |  | (9,549 | ) |  | (8,947 | )
Basic and diluted net loss per share |  | $ | (0.06 | ) | $ | (0.06 | ) | $ | (0.06 | ) | $ | (0.06 | )
Year Ended December 31, 2013 |  |  |  |  |  |  |  |  |  |  |  |  |
Revenues |  | $ | 765 |  | $ | 112 |  | $ | 181 |  | $ | 225 |
Operating expenses(1) |  |  | 12,750 |  |  | 9,077 |  |  | 8,914 |  |  | 9,500 |
Net loss |  |  | (11,897 | ) |  | (8,947 | ) |  | (8,254 | ) |  | (9,281 | )
Basic and diluted net loss per share |  | $ | (0.09 | ) | $ | (0.07 | ) | $ | (0.06 | ) | $ | (0.07 | )
(1) | The fourth quarter of 2013 includes approximately $430,000 in restructuring charges in connection with the closure our research laboratory facility located at 200 Constitution Drive, Menlo Park, California. See Note 6 on Restructurings.
Basic and diluted net losses per share are computed independently for each of the quarters presented. Therefore, the sum of the quarters may not be equal to the full year net loss per share amounts.

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- Definition The entire disclosure for the quarterly financial data in the annual financial statements. The disclosure may include a tabular presentation of financial information for each fiscal quarter for the current and previous year, including revenues, gross profit, income or loss before extraordinary items and earnings per share data. It also includes an indication if the information in the note is unaudited, comments on the aggregate effect of year-end adjustments, and an explanation of matters or transactions that affect comparability or are pertinent to an understanding of the information furnished. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 270 -SubTopic 10 -Section 45 -Paragraph 13 -URI http://asc.fasb.org/extlink&oid=6372559&loc=d3e765-108305 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 270 -SubTopic 10 -Section 45 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=6372559&loc=d3e725-108305 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 270 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a)-(j) -URI http://asc.fasb.org/extlink&oid=35737889&loc=d3e1280-108306 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 6 -Section G -Subsection 1 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K (SK) -Number 229 -Section 302 -Paragraph a + Details
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