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v3.23.3

Stock Option Plans - Stock Option Activity (Details) - $ / shares | 1 Months Ended | 9 Months Ended
--- | --- | ---
Mar. 31, 2016 | Feb. 28, 2014 | Sep. 30, 2023
Stock Option Plans |  |  |
Shares available for future option grants |  |  | 5,099,421
Shares Available for Grant |  |  |
Shares Available for Grant, Opening Balance |  |  | 4,017,011
Shares Available for Grant, Ending Balance |  |  | 5,099,421
Number of Options |  |  |
Outstanding Options, Opening Balance |  |  | 7,006,250
Outstanding Options, Ending Balance |  |  | 7,762,672
2014 Plan |  |  |
Stock Option Plans |  |  |
Vesting period |  | 4 years |
Maximum exercise term |  | 10 years |
Exercise price of common stock of its fair value (as a percent) |  | 100.00% |
Shares available for future option grants | 0 |  |
Maximum number of options that may be re-issued under the 2016 plan | 1,136,229 |  |
Shares Available for Grant |  |  |
Shares Available for Grant, Ending Balance | 0 |  |
2016 Plan |  |  |
Stock Option Plans |  |  |
Vesting period | 4 years |  |
Maximum exercise term | 10 years |  |
Exercise price of common stock of its fair value (as a percent) | 100.00% |  |
Shares available for future option grants |  |  | 5,099,421
Shares Available for Grant |  |  |
Shares Available for Grant, Opening Balance |  |  | 4,017,011
Shares Available for Grant, Additional Shares Authorized |  |  | 1,862,000
Shares Available for Grant, Options Granted |  |  | (1,002,000)
Shares Available for Grant, Options Forfeited |  |  | 222,410
Shares Available for Grant, Ending Balance |  |  | 5,099,421
Number of Options |  |  |
Outstanding Options, Opening Balance |  |  | 7,006,250
Outstanding Options, Granted |  |  | 1,002,000
Outstanding Options, Exercised |  |  | (23,168)
Outstanding Options, Forfeited |  |  | (222,410)
Outstanding Options, Ending Balance |  |  | 7,762,672
Weighted-Average Exercise Price |  |  |
Outstanding Options - Weighted Average Exercise Price, Opening Balance |  |  | $ 5.25
Outstanding Options - Weighted Average Exercise Price, Granted |  |  | 1.10
Outstanding Options - Weighted Average Exercise Price, Exercised |  |  | 0.52
Outstanding Options - Weighted Average Exercise Price, Forfeited |  |  | 5.98
Outstanding Options - Weighted Average Exercise Price, Ending Balance |  |  | $ 4.71

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