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v3.20.2

Common Stock (Details) |  | 1 Months Ended | 6 Months Ended |
--- | --- | --- | --- | ---
Nov. 08, 2019 shares | Mar. 31, 2020 USD ($) | Jun. 30, 2020 USD ($) Vote shares | Dec. 31, 2019 shares
Common Stock |  |  |  |
Common stock, shares authorized for issuance |  |  | 290,000,000 | 290,000,000
Preferred stock, shares authorized for issuance |  |  | 10,000,000 | 10,000,000
Number of votes per share of common stock | Vote |  |  | 1 |
Dividends on common stock | $ |  |  | $ 0 |
Shares of common stock reserved for issuance, on an as-converted basis |  |  |  |
Shares reserved for exchange warrants |  |  | 1,458,000 | 1,458,000
Shares available for future option grants |  |  | 2,822,995 | 1,704,183
Outstanding options |  |  | 5,561,098 | 5,643,410
Shares reserved for employee stock purchase plan |  |  | 400,000 | 400,000
Total |  |  | 10,242,093 | 9,205,593
Exchange Warrants |  |  |  |
Shares of common stock reserved for issuance, on an as-converted basis |  |  |  |
Exchange warrants | 1,458,000 |  | 1,458,000 |
At-the-market offering | Cowen |  |  |  |
Common Stock |  |  |  |
Proceeds from sale of stock | $ |  |  | $ 0 |
At-the-market offering | Cowen | Maximum |  |  |  |
Common Stock |  |  |  |
Potential gross proceeds | $ |  | $ 50,000,000 |  |
Stock issuance costs, as a percent of gross proceeds |  | 3.00% |  |

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