Balance Sheet Components - Schedule of Prepaid Expenses and Other Current Assets (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Prepaid Expense And Other Assets Current [Abstract]
Advances to suppliers	$ 1,673	$ 1,834
Prepaid insurance	754	1,543
Other prepaid expenses	2,147	1,383
Total prepaid expenses and other current assets	$ 4,574	$ 4,760