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Income Taxes - Effective Income Tax Rate - Narrative (Detail) - USD ($)	3 Months Ended
	Jul. 28, 2024	Jul. 30, 2023
Income Taxes [Line Items]
Income taxes	$ 240,000	$ 701,000
Effective income tax rate	(3.40%)	(26.50%)
Pre-tax income (loss)	$ (7,021,000)	$ (2,641,000)
U.S. [Member]
Income Taxes [Line Items]
Pre-tax income (loss)	$ (7,000,000)	$ (3,300,000)

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