v3.21.1

Share-based Compensation - Additional information (Details) - USD ($) $ / shares in Units, $ in Millions | 3 Months Ended |
--- | --- | ---
Mar. 31, 2021 | Mar. 31, 2020 | Dec. 31, 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Total share-based compensation expense | $ 0.4 | $ 0.4 |
Unvested Restricted Stock Units |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Weighted average grant-date fair value | $ 11.00 |  |
2019 Equity Incentive Plans |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Aggregate shares of common stock were authorized | 1,705,028 |  |
Common shares were available for future grants | 1,411,095 |  |
Weighted average grant-date fair value | $ 11.00 |  |
2019 Equity Incentive Plans | Options | Minimum |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Vesting Period | 1 year |  |
2019 Equity Incentive Plans | Options | Maximum |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Vesting Period | 4 years |  |
2019 Equity Incentive Plans | Unvested Restricted Stock Units |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Weighted average grant-date fair value |  |  | $ 11.00
Fair value ,vested | $ 0.1 |  |
2019 Equity Incentive Plans | Unvested Restricted Stock Units | Maximum |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Vesting Period | 10 years |  |

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