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Quarterly Financial Information (unaudited) | 12 Months Ended
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Dec. 31, 2018
Quarterly Financial Data [Abstract] |
Quarterly Financial Information (unaudited) | Quarterly Financial Information (unaudited) The following information has been derived from unaudited consolidated statements that, in the opinion of management, include all recurring adjustments necessary for a fair statement of such information.
|  | Three Months Ended 2018
|  | March 31 |  | June 30 |  | September 30 |  | December 31
Revenue |  | $ | 19,097 |  |  | $ | 47,898 |  |  | $ | 10,938 |  |  | $ | 6,585 |
Operating loss |  | (2,443,472 | ) |  | (2,784,583 | ) |  | (2,720,027 | ) |  | (2,417,714 | )
Net loss |  | (2,449,787 | ) |  | (2,781,149 | ) |  | (2,727,028 | ) |  | (2,424,095 | )
Deemed dividend |  | — |  |  | — |  |  | — |  |  | (1,822,873 | )
Basic and diluted net loss per share attributable to common shareholders |  | $ | (0.21 | ) |  | $ | (0.22 | ) |  | $ | (0.21 | ) |  | $ | (0.30 | )
|  | Three Months Ended 2017
|  | March 31 |  | June 30 |  | September 30 |  | December 31
Revenue |  | $ | — |  |  | $ | 53,278 |  |  | $ | — |  |  | $ | — |
Operating loss |  | (2,049,098 | ) |  | (2,087,074 | ) |  | (2,439,230 | ) |  | (2,655,756 | )
Net loss |  | (2,055,743 | ) |  | (2,093,436 | ) |  | (2,446,219 | ) |  | (2,663,249 | )
Basic and diluted net loss per share attributable to common shareholders |  | $ | (0.24 | ) |  | $ | (0.24 | ) |  | $ | (0.28 | ) |  | $ | (0.30 | )

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- References No definition available. + Details
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- Definition The entire disclosure for quarterly financial data. Includes, but is not limited to, tabular presentation of financial information for fiscal quarters, effect of year-end adjustments, and an explanation of matters or transactions that affect comparability of the information. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 270 -URI http://asc.fasb.org/topic&trid=2126967 + Details
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