Balance Sheet Components - Components of Other Current and Non-current Assets (Details) - USD ($) $ in Thousands	Jan. 31, 2022	Jan. 31, 2021
Other Assets [Abstract]
Deferred sales commissions, current	$ 6,395	$ 4,689
Prepaid expenses	4,239	3,152
Convertible note receivable (see "GTC" below)	1,773	1,605
Deferred inventory costs	344	381
Other current assets	847	395
Total other current assets	13,598	10,222
Deferred sales commissions, non-current	13,228	11,474
Other non-current assets	647	736
Total other non-current assets	$ 13,875	$ 12,210