Common Stock - Summary of Stock-Based Compensation (Details) - Stock Options - USD ($) $ in Thousands |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Sep. 30, 2020 |
Sep. 30, 2019 |
Sep. 30, 2020 |
Sep. 30, 2019 |
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| Stock-based compensation | $ 1,127 | $ 569 | $ 3,067 | $ 1,481 |
| Research and Development | ||||
| Stock-based compensation | 539 | 365 | 1,449 | 962 |
| General and Administrative Expense | ||||
| Stock-based compensation | $ 588 | $ 204 | $ 1,618 | $ 519 |
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- Definition Amount of expense for award under share-based payment arrangement. Excludes amount capitalized. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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