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Components of Other Income (Loss) (Details) - USD ($)
$ in Thousands
 3 Months Ended
Mar. 31, 2022
Mar. 31, 2021
Other Income and Expenses [Abstract]    
French research tax credits $ 892 $ 0
Interest income 39 43
Interest expense (61) (53)
Loss on currency revaluation (100) (238)
Other 14 0
Other income (loss), net $ 784 $ (248)