Stock Based Compensation Expense - Summary of Stock Option Activities (Details) - $ / shares |
9 Months Ended |
|---|---|
Sep. 30, 2021 | |
| Disclosure Of Compensation Related Costs Sharebased Payments [Abstract] | |
| Number of Options Outstanding, Beginning Balance | 2,247,136 |
| Number of Options, Granted | 500,877 |
| Number of Options, Forfeited | (154,227) |
| Number of Options, Exercised | (58,290) |
| Number of Options, Expired | (3,286) |
| Number of Options Outstanding, Ending Balance | 2,532,210 |
| Weighted Average Exercise Price Per Share, Granted | $ 12.08 |
| Weighted Average Exercise Price Per Share, Forfeited | 6.56 |
| Weighted Average Exercise Price Per Share, Exercised | 2.96 |
| Weighted Average Exercise Price Per Share, Expired | $ 0.73 |
| Number of Options Vested and exercisable at September 30, 2021 | 1,399,015 |
| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- Definition Number of options or other stock instruments for which the right to exercise has lapsed under the terms of the plan agreements. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition The number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Gross number of share options (or share units) granted during the period. No definition available.
|
| X | ||||||||||
- Definition Number of options outstanding, including both vested and non-vested options. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Number of fully vested and expected to vest exercisable options that may be converted into shares under option plan. Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Weighted average price at which option holders acquired shares when converting their stock options into shares. No definition available.
|
| X | ||||||||||
- Definition Weighted average price at which grantees could have acquired the underlying shares with respect to stock options of the plan that expired. No definition available.
|
| X | ||||||||||
- Definition Weighted average price at which grantees could have acquired the underlying shares with respect to stock options that were terminated. No definition available.
|
| X | ||||||||||
- Definition Weighted average per share amount at which grantees can acquire shares of common stock by exercise of options. No definition available.
|
| X | ||||||||||
- Definition Number of share options (or share units) exercised during the current period. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|