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Selected Quarterly Financial Data (Unaudited) (Tables) | 12 Months Ended
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Dec. 31, 2016
Quarterly Financial Information Disclosure [Abstract] |
Schedule of Selected Quarterly Financial Results from Operations | Selected quarterly financial results from operations for the years ended December 31, 2016 and 2015 are as follows (in thousands, except per share amounts):
|  | 2016 Quarter End |
|  | March 31, |  |  | June 30 |  |  | September 30 |  |  | December 31 |
Total revenue |  | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | — |
Operating expenses |  |  | 23,529 |  |  |  | 28,690 |  |  |  | 29,200 |  |  |  | 31,476 |
Net loss |  |  | (23,467 | ) |  |  | (28,613 | ) |  |  | (29,031 | ) |  |  | (31,276 | )
Net loss per share: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Basic and Diluted |  |  | (0.70 | ) |  |  | (0.83 | ) |  |  | (0.65 | ) |  |  | (0.66 | )
|  | 2015 Quarter End |
|  | March 31, |  |  | June 30 |  |  | September 30 |  |  | December 31 |
Total revenue |  | $ | 5,883 |  |  | $ | 18,143 |  |  | $ | — |  |  | $ | — |
Operating expenses |  |  | 9,373 |  |  |  | 9,087 |  |  |  | 18,079 |  |  |  | 16,876 |
Net (loss) income |  |  | (3,502 | ) |  |  | 9,007 |  |  |  | (18,126 | ) |  |  | (17,000 | )
Net (loss) income per share: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Basic |  |  | (0.19 | ) |  |  | 0.43 |  |  |  | (0.70 | ) |  |  | (0.65 | )
Diluted |  |  | (0.19 | ) |  |  | 0.42 |  |  |  | (0.70 | ) |  |  | (0.65 | )

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- Definition Tabular disclosure of quarterly financial data. Includes, but is not limited to, financial information for fiscal quarters, cumulative effect of a change in accounting principle and earnings per share data. + References Reference 1: 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=68076893&loc=d3e1280-108306 + Details
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