Balance Sheets Components - Schedule of Accrued Expenses and Other Current Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Payables And Accruals [Abstract]
Accrued payroll and related benefits	$ 7,237	$ 5,362
Deferred non-recurring engineering services	5,666
Revenue reserves	4,517	3,063
Short term lease liability	1,336	1,264
Accrued customer rebates	784	380
Other accrued expenses	4,742	2,894
Operating Lease Liability Current	$ 1,336	$ 1,264
Operating Lease, Liability, Current, Statement of Financial Position [Extensible List]	Total accrued expenses and other current liabilities	Total accrued expenses and other current liabilities
Total accrued expenses and other current liabilities	$ 24,282	$ 12,963