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Warrants and Options (Tables) | 9 Months Ended
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Sep. 30, 2022
Warrants and Rights Note Disclosure [Abstract] |
Summary of Warrants Issued to Purchase Common Stock | The Company issued the following warrants to purchase shares of its common stock, which are outstanding as of September 30, 2022 or December 31, 2021, respectively. These warrants are exercisable any time at the option of the holder until their expiration date.
|  | Issuance Date |  | Term |  | Exercise Price Per Share |  |  | Exercised during the Year Ended December 31, 2021 |  |  | Outstanding at December 31, 2021 |  |  | Exercised during the Nine Months Ended September 30, 2022 |  |  | Outstanding at September 30, 2022 |
August 2022 Pre-Funded Warrants |  | August 2022 |  | perpetual |  | $ | 0.00 |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 2,272,506 |
January 2021 Placement Agent Warrants |  | January 2021 |  | 5.5 years |  | $ | 3.99 |  |  |  | — |  |  |  | 393,839 |  |  |  | — |  |  |  | 393,839 |
January 2021 Service and Performance Warrants (1) |  | January 2021 |  | 2 years |  | $ | 3.08 |  |  |  | — |  |  |  | 7,500 |  |  |  | — |  |  |  | 7,500 |
December 2020 Warrants |  | December 2020 |  | 5.5 years |  | $ | 3.00 |  |  |  | — |  |  |  | 2,618,658 |  |  |  | — |  |  |  | 2,618,658 |
December 2020 Placement Agent Warrants |  | December 2020 |  | 5 years |  | $ | 3.82 |  |  |  | — |  |  |  | 130,933 |  |  |  | — |  |  |  | 130,933 |
July 2020 Warrants |  | July 2020 |  | 5.5 years |  | $ | 3.85 |  |  |  | — |  |  |  | 641,416 |  |  |  | — |  |  |  | 641,416 |
July 2020 Placement Agent Warrants |  | July 2020 |  | 5.5 years |  | $ | 4.97 |  |  |  | — |  |  |  | 32,071 |  |  |  | — |  |  |  | 32,071 |
May 2020 Warrants |  | May 2020 |  | 5 years |  | $ | 4.78 |  |  |  | — |  |  |  | 1,392,345 |  |  |  | — |  |  |  | 1,392,345 |
May 2020 Placement Agent Warrants |  | May 2020 |  | 5 years |  | $ | 6.13 |  |  |  | — |  |  |  | 69,617 |  |  |  | — |  |  |  | 69,617 |
March 2020 Service and Performance Warrants (1) |  | March 2020 |  | 3 years |  | $ | 2.50 |  |  |  | — |  |  |  | 18,350 |  |  |  | — |  |  |  | 18,350 |
February 12, 2020 Service and Performance Warrants (1)(3) |  | February 2020 |  | 2 years |  | $ | 4.71 |  |  |  | — |  |  |  | 150,000 |  |  |  | — |  |  |  | — |
February 3, 2020 Service and Performance Warrants (1)(3) |  | February 2020 |  | 2 years |  | $ | 4.91 |  |  |  | — |  |  |  | 10,000 |  |  |  | — |  |  |  | — |
September 2019 Placement Agent Warrants |  | September 2019 |  | 5 years |  | $ | 9.48 |  |  |  | — |  |  |  | 65,942 |  |  |  | — |  |  |  | 65,942 |
June 2019 Placement Agent Warrants |  | June 2019 |  | 5 years |  | $ | 6.29 |  |  |  | — |  |  |  | 74,479 |  |  |  | — |  |  |  | 74,479 |
April 2019 Service and Performance Warrants (1) |  | April 2019 |  | 5 years |  | $ | 6.18 |  |  |  | — |  |  |  | 145,154 |  |  |  | — |  |  |  | 145,154 |
June 2018 Placement Agent Warrants |  | June 2018 |  | 5 years |  | $ | 12.57 |  |  |  | — |  |  |  | 69,617 |  |  |  | — |  |  |  | 69,617 |
March 2018 Placement Agent Warrants |  | March 2018 |  | 5 years |  | $ | 41.56 |  |  |  | — |  |  |  | 15,038 |  |  |  | — |  |  |  | 15,038 |
January 2021 Warrants (2) |  | January 2021 |  | 5.5 years |  | $ | 3.13 |  |  |  | — |  |  |  | 3,938,392 |  |  |  | — |  |  |  | 3,938,392 |
September 2019 Warrants (2) |  | September 2019 |  | 5.5 years |  | $ | 7.52 |  |  |  | — |  |  |  | 659,414 |  |  |  | — |  |  |  | 659,414 |
June 2019 Warrants (2) |  | June 2019 |  | 5.5 years |  | $ | 5.00 |  |  |  | — |  |  |  | 435,830 |  |  |  | — |  |  |  | 435,830 |
June 2018 Warrants (2) |  | June 2018 |  | 5.5 years |  | $ | 9.94 |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
March 2018 Warrants (2) |  | March 2018 |  | 5 years |  | $ | 10.73 |  |  |  | — |  |  |  | 641,416 |  |  |  | — |  |  |  | 641,416 |
Total |  |  |  |  |  |  |  |  |  | — |  |  |  | 11,510,011 |  |  |  | — |  |  |  | 13,622,517 |
(1) The Company issued service and performance warrants (“Service and Performance Warrants”) in connection with professional services agreements with non-affiliated third party entities. (2) Certain warrants contain a contingent cash payment feature and therefore were accounted for as a liability at the date of issuance and were adjusted to fair value at each balance sheet date. Upon adoption of ASU No. 2020-06 on January 1, 2022, all of the common stock warrant liabilities have been reclassified to equity classified common stock warrants, due to the elimination of the contingent cash payments as criteria for liability classification. (3) These warrants expired in February 2022.
Summary of Key Terms and Activity of Liability Classified Preferred Investment Options | The key terms and activity of the liability classified preferred investment options are summarized as follows:
|  | Issuance Date |  | Term |  | Exercise Price Per Share |  |  | Exercised during the Year Ended December 31, 2021 |  |  | Outstanding at December 31, 2021 |  |  | Exercised during the Nine Months Ended September 30, 2022 |  |  | Outstanding at September 30, 2022 |
August 2022 Options |  | August 2022 |  | 5 years |  | $ | 0.93 |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 4,722,506 |
August 2022 Placement Agent Options |  | August 2022 |  | 5 years |  | $ | 1.32 |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 236,125 |
Total |  |  |  |  |  |  |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 4,958,631 |

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- Definition Schedule of key terms and activity of preferred investment options. + References No definition available. + Details
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- Definition Tabular disclosure of warrants or rights issued. Warrants and rights outstanding are derivative securities that give the holder the right to purchase securities (usually equity) from the issuer at a specific price within a certain time frame. Warrants are often included in a new debt issue to entice investors by a higher return potential. The main difference between warrants and call options is that warrants are issued and guaranteed by the company, whereas options are exchange instruments and are not issued by the company. Also, the lifetime of a warrant is often measured in years, while the lifetime of a typical option is measured in months. Disclose the title of issue of securities called for by warrants and rights outstanding, the aggregate amount of securities called for by warrants and rights outstanding, the date from which the warrants or rights are exercisable, and the price at which the warrant or right is exercisable. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5047-113901 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 50 -Section S99 -Paragraph 1 -URI https://asc.fasb.org/extlink&oid=6784392&loc=d3e188667-122775 + Details
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