Balance Sheet Components - Components of Accrued Expenses and Other Current Liabilities (Details) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Balance Sheet Components [Abstract]
Accrued salary and payroll-related expenses	$ 1,453	$ 3,091
Accrued liabilities	817	962
Income taxes payable	404	336
Advanced billings	311	334
Other	1,407	1,453
Total accrued expenses and other current liabilities	$ 4,392	$ 6,176	[1]

[1] Derived from the Company’s audited consolidated financial statements as of December 31, 2021.