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Commitments and Contingencies - Additional Information (Details) $ in Thousands, € in Millions | Apr. 01, 2021 USD ($) | Mar. 31, 2021 | Jul. 27, 2020 USD ($) | Apr. 01, 2021 EUR (€) | Dec. 31, 2020 USD ($)
--- | --- | --- | --- | --- | ---
Loss Contingencies [Line Items] |  |  |  |  |
Percentage of enrolled patients |  | 87.00% |  |  |
Pending Litigation [Member] |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |
Unpaid compensation amounts claimed |  |  | $ 1,140 |  |
Accrued unpaid compensation amounts |  |  |  |  | $ 1,140
Medac [Member] |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |
Due from related parties | $ 1,160 |  |  | € 1,000 |
Agreement date | Dec. 10, 2018 |  |  |  |

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