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Quarterly Financial Information (Unaudited) (Tables) | 12 Months Ended
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Dec. 31, 2018
Quarterly Financial Information (Unaudited) |
Summary of Quarterly Financial Information |
|  | Quarter Ended |
|  | December 31, |  | September 30, |  | June 30, |  | March 31, |
|  | 2018 |  | 2018 |  | 2018 |  | 2018 |
Revenue |  | $ | — |  | $ | — |  | $ | — |  | $ | — |
Net loss |  | $ | (13,906,915) |  | $ | (11,575,111) |  | $ | (11,278,763) |  | $ | (11,512,844) |
Loss per share—basic and diluted |  | $ | (0.32) |  | $ | (0.27) |  | $ | (0.26) |  | $ | (0.33) |
|  | Quarter Ended |
|  | December 31, |  | September 30, |  | June 30, |  | March 31, |
|  | 2017 |  | 2017 |  | 2017 |  | 2017 |
Revenue |  | $ | — |  | $ | — |  | $ | — |  | $ | — |
Net loss |  | $ | (9,257,858) |  | $ | (7,950,101) |  | $ | (8,141,796) |  | $ | (7,931,313) |
Loss per share—basic and diluted |  | $ | (0.27) |  | $ | (0.24) |  | $ | (0.30) |  | $ | (0.34) |

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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/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 270 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=109225645&loc=d3e1280-108306 + Details
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