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Accumulated Other Comprehensive Income (Loss) and Reclassifications Adjustments (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jan. 29, 2022	Jan. 30, 2021	Jan. 29, 2022	Jan. 30, 2021
Accumulated other comprehensive loss
Balance, net of $1 and $0 deferred taxes, as of April 30, 2021 and April 30, 2020, respectively			$ 343
Unrealized (loss) gain on available-for-sale investments, net of deferred tax benefit of $1 and $2 for the three months ended January 29, 2022 and January 30, 2021, respectively; and $1 and $2 for the nine months ended January 29, 2022 and January 30, 2021, respectively	$ (3)	$ 5	(6)	$ (56)
Change in foreign currency translation adjustments	(1,754)		(3,771)	75
Balance, net of $2 and $2 deferred taxes, as of January 29, 2022 and January 30, 2021, respectively	(3,434)		(3,434)
Accumulated Other Comprehensive Loss
Accumulated other comprehensive loss
Balance, net of $1 and $0 deferred taxes, as of April 30, 2021 and April 30, 2020, respectively			343	328
Unrealized (loss) gain on available-for-sale investments, net of deferred tax benefit of $1 and $2 for the three months ended January 29, 2022 and January 30, 2021, respectively; and $1 and $2 for the nine months ended January 29, 2022 and January 30, 2021, respectively	(3)	5	(6)	(56)
Change in foreign currency translation adjustments			(3,771)	75
Balance, net of $2 and $2 deferred taxes, as of January 29, 2022 and January 30, 2021, respectively	$ (3,434)	$ 347	$ (3,434)	$ 347

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Accumulated change in equity from transactions and other events and circumstances from non-owner sources, net of tax effect, at period end. Excludes Net Income (Loss), and accumulated changes in equity from transactions resulting from investments by owners and distributions to owners. Includes foreign currency translation items, certain pension adjustments, unrealized gains and losses on certain investments in debt and equity securities, other than temporary impairment (OTTI) losses related to factors other than credit losses on available-for-sale and held-to-maturity debt securities that an entity does not intend to sell and it is not more likely than not that the entity will be required to sell before recovery of the amortized cost basis, as well as changes in the fair value of derivatives related to the effective portion of a designated cash flow hedge.

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Amount after tax and reclassification adjustments, of appreciation (loss) in value of unsold available-for-sale securities, attributable to parent entity. Excludes amounts related to other than temporary impairment (OTTI) loss.

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Amount after tax and reclassification adjustments of gain (loss) on foreign currency translation adjustments, foreign currency transactions designated and effective as economic hedges of a net investment in a foreign entity and intra-entity foreign currency transactions that are of a long-term-investment nature, attributable to parent entity.

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