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Commitments and Contingencies - Manufacturing, License and Other Agreements (Details)
$ in Thousands
Dec. 31, 2020
USD ($)
Commitments and Contingencies  
Manufacturing commitments $ 636
License And Service Agreements  
Commitments and Contingencies  
Royalties paid or accrued 0
Licensing Agreement  
Commitments and Contingencies  
Royalties paid or accrued $ 0