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v3.21.1

Stockholders' Equity (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2020
Class Of Warrant Or Right [Line Items] |
Schedule of Warrant Activity | The following table shows the warrant activity:
|  | Rollforward of Warrant Activity |
|  | Registered direct warrants, series A |  |  | Registered direct warrants, series B |  |  | Registered direct warrants, placement agent |  |  | Private placement warrants |  |  | Private placement warrants, placement agent |  |  | Total |
Balance as of December 31, 2019 |  |  | 191,617 |  |  |  | 191,617 |  |  |  | 9,581 |  |  |  | — |  |  |  | — |  |  |  | 392,815 |
Issued |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 383,235 |  |  |  | 19,162 |  |  |  | 402,397 |
Exercised |  |  | (191,617 | ) |  |  | (191,617 | ) |  |  | — |  |  |  | (64,171 | ) |  |  | (9,985 | ) |  |  | (457,390 | )
Cancelled/Expired |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
Balance as of December 31, 2020 |  |  | — |  |  |  | — |  |  |  | 9,581 |  |  |  | 319,064 |  |  |  | 9,177 |  |  |  | 337,822 |
Anelixis [Member] |
Class Of Warrant Or Right [Line Items] |
Schedule of Warrant Activity | The following table shows the warrant activity:
| Rollforward of Warrant Activity |
|  | Warrants assumed and replaced in acquisition |  |  | Total |
Balance as of December 31, 2019 |  |  | — |  |  |  | — |
Assumed and replaced |  |  | 55,583.875 |  |  |  | 55,583.875 |
Exercised |  |  | — |  |  |  | — |
Cancelled/Expired |  |  | — |  |  |  | — |
Balance as of December 31, 2020 |  |  | 55,583.875 |  |  |  | 55,583.875 |

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