Stockholders’ Equity and Stock-Based Compensation - Recognized Stock-Based Compensation Expense (Details) - USD ($) $ in Thousands |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Jun. 30, 2021 |
Jun. 30, 2020 |
Jun. 30, 2021 |
Jun. 30, 2020 |
|
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ||||
| General and administrative | $ 1,758 | $ 328 | $ 2,129 | $ 656 |
| Research and development | ||||
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ||||
| General and administrative | 384 | 66 | 465 | 133 |
| General and administrative | ||||
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ||||
| General and administrative | $ 1,374 | $ 262 | $ 1,664 | $ 523 |