Balance Sheet Details - Accrued and Other Current Liabilities (Details) - USD ($) $ in Thousands		Apr. 30, 2022	Apr. 30, 2021
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Liability for common stock exercised prior to vesting		$ 1,970	$ 5,331
Commissions payable to a related party		2,510	3,413
Accrued general expenses		4,972	3,588
Operating lease liabilities, current		3,613	3,894
Other		1,809	2,092
Accrued and other current liabilities	[1]	$ 14,874	$ 18,318

[1] Including amounts from a related party of $2,510 and $3,413 as of April 30, 2022 and 2021, respectively.