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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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