2018 Stock Option and Grant Plan - Summary of Stock-Based Compensation (Details) - Stock Options - 2018 Plan - Founders - USD ($) $ in Thousands |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Sep. 30, 2019 |
Sep. 30, 2018 |
Sep. 30, 2019 |
Sep. 30, 2018 |
|
| Stock-based compensation | $ 569 | $ 195 | $ 1,481 | $ 326 |
| Research and Development | ||||
| Stock-based compensation | 365 | 151 | 962 | 252 |
| General and Administrative Expense | ||||
| Stock-based compensation | $ 204 | $ 44 | $ 519 | $ 74 |
| X | ||||||||||
- Definition Amount of expense for award under share-based payment arrangement. Excludes amount capitalized. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|