Balance Sheet Details - Accrued and Other Current Liabilities (Details) - USD ($) $ in Thousands		Apr. 30, 2024	Apr. 30, 2023
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Liability for common stock exercised prior to vesting		$ 266	$ 799
Accrued general expenses		2,783	5,541
Operating lease liabilities, current		3,226	2,339
Accrued professional services		2,082	2,889
Commissions payable to a related party		0	2,448
Other		1,169	3,054
Accrued and other current liabilities	[1]	$ 9,526	$ 17,070

[1] Including amounts due to a related party of $2,448 as of April 30, 2023.