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Common Stock Warrants | 12 Months Ended
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Dec. 31, 2021
Warrants And Rights Note Disclosure [Abstract] |
Common Stock Warrants | Note 15. Common Stock Warrants At December 31, 2021 and 2020, the Company had the following common stock warrants issued and outstanding:
|  | Shares |  |  |  |  |  |  |  |
Warrant Class |  | 2021 |  |  | 2020 |  |  | Issuance Date |  | Price per Share |  |  | Expiration Date
Common stock warrant |  |  | — |  |  |  | 50,716 |  |  | February 2014 |  | $ | 0.1700 |  |  | February 2021
The outstanding warrants for 50,716 shares were exercised in February 2021 on a cash basis and converted into 50,716 shares of common stock.

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