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Commitments and Contingencies - Notes Payable (Details) - Broad - Sponsored Research Agreement - USD ($) $ in Millions | 1 Months Ended |
--- | --- | ---
Jan. 31, 2021 | Jun. 30, 2018 | Dec. 31, 2020
Notes Payable |  |  |
Common stock issued |  | 330,617 |
Promissory notes issued |  | $ 125.0 |
Market capitalization |  |  | $ 2,500.0
Subsequent Event |  |  |
Notes Payable |  |  |
Common stock issued | 303,599 |  |
Accrued expense |  |  |
Notes Payable |  |  |
Success payment accrued |  |  | $ 12.5

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