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Note Payable (Details)
$ in Thousands, € in Millions
12 Months Ended
Dec. 31, 2020
USD ($)
item
Dec. 31, 2020
EUR (€)
Dec. 31, 2019
USD ($)
Debt Instrument [Line Items]      
Note payable | $ $ 4,912   $ 0
CRYOPDP      
Debt Instrument [Line Items]      
Number of installment | item 2    
Note payable $ 4,900 € 4.0  
CRYOPDP | repaid in 2025      
Debt Instrument [Line Items]      
Note payable 600 0.5  
CRYOPDP | repaid in 2028      
Debt Instrument [Line Items]      
Note payable $ 4,300 € 3.5