Balance Sheet Components - Schedule of Accrued Expenses (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Accrued Liabilities, Current [Abstract]
Vendor invoices	$ 2,779	$ 2,232
Other accrued expenses	1,979	1,015
Total accrued expenses	$ 4,758	$ 3,247