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Net Loss per Share (Tables) | 9 Months Ended
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Sep. 30, 2021
Earnings Per Share [Abstract] |
Potential Dilutive Shares Excluded from Computation of Diluted Net Loss Per Share | The Company’s potentially dilutive shares, which include outstanding common stock options, inducement stock options, unvested restricted stock and warrants, have not been included in the computation of diluted net loss per share for any of the periods presented as the result would be anti-dilutive. Such potentially dilutive shares of common stock consisted of the following as of September 30, 2021 and 2020, respectively:
|  | September 30, |
|  | 2021 |  |  | 2020 |
Stock options |  |  | 11,072,894 |  |  |  | 6,572,191 |
Inducement stock options |  |  | 97,500 |  |  |  | 863,333 |
Unvested restricted stock |  |  | 1,510,655 |  |  |  | 1,289,389 |
Warrants |  |  | 22,705,571 |  |  |  | 22,272,727 |
|  |  | 35,386,620 |  |  |  | 30,997,640 |

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- Definition Tabular disclosure of securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) in the future that were not included in the computation of diluted EPS because to do so would increase EPS amounts or decrease loss per share amounts for the period presented, by antidilutive securities. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=124432515&loc=d3e3550-109257 + Details
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