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Balance Sheet Components (Components of Inventory) (Details) - USD ($)
$ in Thousands
Jun. 30, 2022
Dec. 31, 2021
Balance Sheet Components [Abstract]    
Purchased materials $ 15,451 $ 7,993
Work in process 12,808 8,611
Finished goods 7,862 7,995
Inventory $ 36,121 $ 24,599