Quarterly report pursuant to Section 13 or 15(d)

Accounts Payable and Accrued Liabilities (Details)

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Accounts Payable and Accrued Liabilities (Details) - USD ($)
$ in Thousands
Sep. 30, 2021
Dec. 31, 2020
Payables and Accruals [Abstract]    
Trade payables $ 3,263 $ 2,635
Other accrued liabilities 8,322 6,616
Accrued R&D projects 3,865 4,185
Employee accruals 14,520 11,361
Total accounts payable and accrued liabilities $ 29,970 $ 24,797