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Balance Sheet Components - Schedule of Inventory (Details) - USD ($)
$ in Thousands
Dec. 31, 2021
Dec. 31, 2020
Organization, Consolidation and Presentation of Financial Statements [Abstract]    
Raw materials $ 2,401 $ 1,376
Work in process 1,951 1,249
Finished goods 3,096 2,192
Total inventory $ 7,448 $ 4,817