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BALANCE SHEET COMPONENTS - Components of Inventory and Printed Circuit Board Assemblies ("PCBAs") (Details) - USD ($)
$ in Thousands
Dec. 31, 2022
Dec. 31, 2021
Balance Sheet Related Disclosures [Abstract]    
Raw materials $ 9,338 $ 5,101
Finished goods 5,817 5,167
Total $ 15,155 $ 10,268