Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Apr. 27, 2024	Apr. 29, 2023	Apr. 30, 2022
Revenue:
Total revenue	$ 192,970	$ 184,194	$ 106,477
Cost of revenue:
Total cost of revenue	73,539	78,000	42,462
Gross profit	119,431	106,194	64,015
Operating expenses:
Research and development	95,531	76,774	47,949
Selling, general and administrative	60,193	48,248	34,900
Impairment charges	765	2,407	3,134
Total operating expenses	156,489	127,429	85,983
Operating loss	(37,058)	(21,235)	(21,968)
Other income (expense), net	14,313	3,321	(245)
Loss before income taxes	(22,745)	(17,914)	(22,213)
Provision (benefit) for income taxes	5,624	(1,367)	(37)
Net loss	$ (28,369)	$ (16,547)	$ (22,176)
Net loss per share:
Net loss per share, basic (in US dollars per share)	$ (0.18)	$ (0.11)	$ (0.25)
Net loss per share, diluted (in US dollars per share)	$ (0.18)	$ (0.11)	$ (0.25)
Weighted-average shares used in computing net loss per share:
Weighted-average shares outstanding used in basic calculation (in shares)	155,091	146,556	88,398
Weighted-average shares used in computing net loss per share, diluted (in shares)	155,091	146,556	88,398
Product sales
Revenue:
Total revenue	$ 145,048	$ 141,475	$ 73,721
Cost of revenue:
Total cost of revenue	70,498	75,143	40,082
Product engineering services
Revenue:
Total revenue	19,898	10,780	7,741
Cost of revenue:
Total cost of revenue	2,225	972	1,918
IP license
Revenue:
Total revenue	28,024	31,939	25,015
Cost of revenue:
Total cost of revenue	$ 816	$ 1,885	$ 462