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Accrued Liabilities and Other
6 Months Ended
Jun. 30, 2021
Payables and Accruals [Abstract]  
Accrued Liabilities and Other . Accrued Liabilities and Other
Accrued liabilities and other current liabilities were as follows:
December 31,
20202019
(in thousands)
Payroll-related accruals$14,305 $8,488 
Value-added and other tax1,553 1,557 
Purchasing accruals3,183 1,796 
Accrued royalties1,130 951 
Accrued other liabilities1,805 1,099 
Total$21,976 $13,891