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Stock-Based Compensation - Additional Information (Details) - USD ($) $ / shares in Units, $ in Thousands | 3 Months Ended | 12 Months Ended |  |  |
--- | --- | --- | --- | --- | ---
Mar. 31, 2022 | Mar. 31, 2021 | Dec. 31, 2019 | Jan. 01, 2022 | Dec. 31, 2021 | Sep. 27, 2021
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |  |
Number of common shares reserved for future issuance | 9,811,733 |  |  |  | 8,259,317 |
Fair value of common stock per share | $ 4.04 |  |  |  |  |
Weighted-average fair value of options granted | $ 6.27 | $ 3.51 |  |  |  |
Gross unrecognized stock-based compensation expense | $ 36,600 |  |  |  |  |
Unrecognized stock-based compensation expense weighted average amortized period | 2 years 9 months 7 days |  |  |  |  |
Number of restricted common stock shares issued | 2,131,460 |  | 994,650 |  |  |
Stock-based compensation expense | $ 3,346 | $ 2,444 |  |  |  |
Restricted Stock Awards |  |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |  |
Number of common shares reserved for future issuance | 2,600,538 |  |  |  | 618,494 |
Number of shares authorized to be repurchased under a stock repurchase plan | 2,131,460 |  |  |  |  |
Unrecognized stock-based compensation expense weighted average amortized period | 2 years 9 months 18 days |  |  |  |  |
Common stock public offering price per share |  |  | $ 0.01 |  |  |
Stock-based compensation expense | $ 58 | $ 6 |  |  |  |
Gross unrecognized stock-based compensation expense | $ 9,200 |  |  |  |  |
2021 Equity Incentive Plan |  |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |  |
Number of common shares reserved for future issuance | 492,687 |  |  | 1,639,643 |  | 3,852,807
Number of shares of common stock outstanding percentage | 5.00% |  |  |  |  |
Maximum number of common shares issuable under exercise of options | 7,705,614 |  |  |  |  |
Number of shares authorized to be repurchased under a stock repurchase plan | 2,868,303 |  |  |  |  |
2019 Equity Incentive Plan |  |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |  |
Number of common shares reserved for future issuance | 127,397 |  |  |  |  |
Number of shares authorized to be repurchased under a stock repurchase plan | 3,298,213 |  |  |  |  |
2019 Equity Incentive Plan | Maximum |  |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |  |
Number of common shares reserved for future issuance |  |  | 4,042,408 |  |  |
2021 Employee Stock Purchase Plan |  |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |  |
Number of common shares authorized for issuance | 424,595 |  |  |  |  |
Number of shares issued | 0 |  |  |  |  |

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