Condensed Consolidated Statements of Shareholders' Equity - USD ($) $ in Thousands	Total	Ordinary Shares	Additional Paid-in Capital	Accumulated Other Comprehensive Income (Loss)	Accumulated Deficit
Beginning balance (in shares) at Apr. 30, 2022		144,755,000
Beginning balance at Apr. 30, 2022	$ 334,163	$ 7	$ 424,562	$ 23	$ (90,429)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Ordinary shares issued under equity incentive plans, net of RSU settlement (in shares)		589,000
Ordinary shares issued under equity incentive plans, net of tax withholding related to vesting of RSU	1,977		1,977
Share-based compensation	5,546		5,546
Warrant contra revenue	388		388
Total comprehensive loss	(169)			(96)	(73)
Ending balance (in shares) at Jul. 30, 2022		145,344,000
Ending balance at Jul. 30, 2022	$ 341,905	$ 7	432,473	(73)	(90,502)
Beginning balance (in shares) at Apr. 29, 2023	148,651	148,651,000
Beginning balance at Apr. 29, 2023	$ 347,635	$ 7	454,795	(191)	(106,976)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Ordinary shares issued under equity incentive plans, net of RSU settlement (in shares)		1,203,000
Ordinary shares issued under equity incentive plans, net of tax withholding related to vesting of RSU	3,260		3,260
Share-based compensation	7,968		7,968
Warrant contra revenue	436		436
Total comprehensive loss	$ (11,859)			(162)	(11,697)
Ending balance (in shares) at Jul. 29, 2023	149,854,000	149,854,000
Ending balance at Jul. 29, 2023	$ 347,440	$ 7	$ 466,459	$ (353)	$ (118,673)