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Stockholders' Equity (Tables) | 3 Months Ended
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Mar. 31, 2021
Summary of Warrant Activity | The following table summarizes the warrants issued and outstanding as of March 31, 2021:
|  | Date of |  |  |  |  | Shares of |
Description |  | Issuance |  | Expiration |  | Exercise Price |  |  | Common Stock |
Exercisable Warrants |  | 10/19/2020 |  | 03/19/2028 |  | $ | 1.50 |  |  |  | 500,000 |
Summary of Stock Option Activity | The following table summarizes the stock option activity for the three months ended March 31, 2021
|  | Stock Options |
|  |  |  |  |  |  |  | Weighted- |
|  |  |  |  |  | Exercise |  | Average |
|  | Number |  |  | Price Per |  | Exercise Price |
|  | of Shares |  |  | Share |  | Per Share |
Outstanding at December 31, 2020 |  |  | 3,177,942 |  |  | $1.17 — $23.20 |  | $ | 2.78 |
Granted |  |  | 193,000 |  |  | $3.83 — $3.01 |  | $ | 3.82 |
Exercised |  |  | (94,554 | ) |  | $3.10 — $1.48 |  | $ | 2.68 |
Cancelled/Forfeited |  |  | (6,250 | ) |  | $5.44 |  | $ | 5.44 |
Outstanding at March 31, 2021 |  |  | 3,270,138 |  |  | $1.17 — $23.20 |  | $ | 2.84 |
Warrants [Member] |
Summary of Warrant Activity | Warrant activity for the three months ended March 31, 2021 was as follows:
|  | Warrants |
|  |  |  |  |  |  |  |  |  | Weighted- |
|  |  |  |  |  |  |  |  |  | Average |
|  | Number |  |  | Exercise Price |  |  | Exercise Price |
|  | of Shares |  |  | per Share |  |  | Per Share |
Outstanding at December 31, 2020 |  |  | 1,021,060 |  |  | $1.15 — $3.88 |  |  | $ | 1.56 |
Exercised |  |  | (181,834 | ) |  | $1.15 — $3.88 |  |  | $ | 1.23 |
Canceled/Forfeited |  |  | (339,226 | ) |  | $1.15 — $3.88 |  |  | $ | 1.83 |
Outstanding at March 31, 2021 |  |  | 500,000 |  |  |  | $1.50 |  |  | $ | 1.50 |

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- Definition Tabular disclosure for stock option plans. Includes, but is not limited to, outstanding awards at beginning and end of year, grants, exercises, forfeitures, and weighted-average grant date fair value. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + 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 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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