Accumulated Other Comprehensive Income (Loss) and Reclassifications Adjustments (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Oct. 29, 2022	Oct. 30, 2021	Oct. 29, 2022	Oct. 30, 2021
Accumulated other comprehensive income
Balance, net of $8 and $1 deferred taxes, as of April 30, 2022 and April 30, 2021, respectively			$ (6,514)
Unrealized gain (loss) on available-for-sale investments, net of deferred tax expense of $0 for the three and six months ended October 29, 2022 and October 30, 2021, respectively	$ 6	$ 1	26	$ (3)
Change in foreign currency translation adjustments	(928)	(1,284)	(1,992)	(2,017)
Balance, net of $2 and $1 deferred taxes, as of July 30, 2022 and July 31, 2021, respectively	(8,480)		(8,480)
Accumulated Other Comprehensive (Loss) Income
Accumulated other comprehensive income
Balance, net of $8 and $1 deferred taxes, as of April 30, 2022 and April 30, 2021, respectively			(6,514)	343
Unrealized gain (loss) on available-for-sale investments, net of deferred tax expense of $0 for the three and six months ended October 29, 2022 and October 30, 2021, respectively	6	1	26	(3)
Change in foreign currency translation adjustments			(1,992)	(2,017)
Balance, net of $2 and $1 deferred taxes, as of July 30, 2022 and July 31, 2021, respectively	$ (8,480)	$ (1,677)	$ (8,480)	$ (1,677)