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Common Stock | 9 Months Ended
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Sep. 30, 2021
Stockholders Equity Note [Abstract] |
Common Stock | 13. Common Stock The Company’s Certificate of Incorporation, as amended, authorized the Company to issue 150,000,000 shares of $0.0001 par value common stock as of December 31, 2020. Common stockholders are entitled to dividends if and when declared by the Board of Directors subject to the prior rights of the preferred stockholders. As of September 30, 2021 and December 31, 2020, no dividends on common stock had been declared by the Board of Directors. As of September 30, 2021, the Company’s outstanding warrants to purchase shares of common stock, consisted of the following:
Issuance Date |  | Number of Shares of Common Stock Issuable |  |  | Exercise Price |  |  | Classification |  | Expiration Date
September 15, 2020 |  |  | 101,610 |  |  | $ | 11.3177 |  |  | Equity |  | July 25, 2026
September 15, 2020 |  |  | 30,924 |  |  | $ | 11.3177 |  |  | Equity |  | August 21, 2026
September 15, 2020 |  |  | 77,312 |  |  | $ | 11.3177 |  |  | Equity |  | September 19, 2026
September 15, 2020 |  |  | 11,044 |  |  | $ | 11.3177 |  |  | Equity |  | September 26, 2026
|  |  | 220,890 |  |  |  |  |  |  |  |  |
The Company has the following shares of common stock reserved for future issuance:
|  | September 30, 2021 |  |  | December 31, 2020 |
Stock options available for future grant |  |  | 2,693,496 |  |  |  | 1,739,621 |
Stock options issued and outstanding |  |  | 4,276,356 |  |  |  | 3,706,945 |
Unvested restricted stock units |  |  | 217,160 |  |  |  | — |
Common stock warrants issued and outstanding |  |  | 220,890 |  |  |  | 226,191 |
Total |  |  | 7,407,902 |  |  |  | 5,672,757 |

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- Definition The entire disclosure for shareholders' equity comprised of portions attributable to the parent entity and noncontrolling interest, including other comprehensive income. Includes, but is not limited to, balances of common stock, preferred stock, additional paid-in capital, other capital and retained earnings, accumulated balance for each classification of other comprehensive income and amount of comprehensive income. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08(e)(1)) -URI http://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=120397183&loc=d3e187085-122770 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -URI http://asc.fasb.org/topic&trid=2208762 + Details
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