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Balance Sheet Components - Components of Inventory and Printed Circuit Board Assemblies ("PCBAs") (Details) - USD ($)
$ in Thousands
Jun. 30, 2022
Dec. 31, 2021
Inventory [Line Items]    
Total inventory and printed circuit board assemblies $ 14,422 $ 10,268
Raw materials    
Inventory [Line Items]    
Total inventory and printed circuit board assemblies 8,247 5,101
Finished goods    
Inventory [Line Items]    
Total inventory and printed circuit board assemblies $ 6,175 $ 5,167