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Accrued Liabilities - (Details) - USD ($)
$ in Thousands
Mar. 31, 2022
Dec. 31, 2021
Other Liabilities Disclosure [Abstract]    
Compensation and related costs $ 1,681 $ 3,260
Chemistry, manufacturing and controls costs 1,557 2,232
Professional and legal fees 765 644
License fees 188 0
Other 395 203
Total $ 4,586 $ 6,339