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Stockholders' Equity (Tables) | 3 Months Ended
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Mar. 31, 2022
Equity [Abstract] |
Schedule of Outstanding Warrants | The following equity classified warrants to purchase common stock were outstanding as of March 31, 2022:
| Shares |  | Exercise Price |  | Issuance date |  | Expiration date
Common stock warrants | 237,169 |  | $ | 1.84 |  |  | January 19, 2016 |  | January 19, 2026
Common stock warrants | 67,086 |  | 1.84 |  |  | March 31, 2016 |  | March 31, 2026
Common stock warrants | 131 |  | 1.84 |  |  | April 1, 2016 |  | April 1, 2026
Common stock warrants | 83,778 |  | 14.32 |  |  | September 7, 2017 |  | September 7, 2024
Common stock warrants | 20,944 |  | 14.32 |  |  | December 7, 2018 |  | December 7, 2025
Common stock warrants (Exchange Warrants) | 804,951 |  | 0.001 |  |  | June 22, 2021 |  | None
| 1,214,059 |  |  |  |  |  |
During the three months ended March 31, 2022, no warrants to purchase common stock was exercised.

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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 http://asc.fasb.org/extlink&oid=120381028&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 http://asc.fasb.org/extlink&oid=6784392&loc=d3e188667-122775 + Details
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