Net Loss Per Share - Schedule of Unvested Common Stock not Included in the Computation of Diluted Net Loss Per Share (Detail) - shares shares in Thousands	12 Months Ended
Apr. 27, 2025	Apr. 28, 2024	Apr. 30, 2023
Earnings Per Share [Abstract]
antidilutive effect from decrease in the price per share of our common stock			25
antidilutive effect from net loss incurred during the fiscal year	145	144	88
total unvested shares of common stock not included in computation of diluted net loss per share	145	144	113

Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 260
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482662/260-10-50-1

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration