Income Taxes - Uncertainty in Income Taxes - Narrative (Detail) - USD ($)	Apr. 28, 2024	Apr. 30, 2023	May 01, 2022	May 02, 2021
Income Taxes [Line Items]
Unrecognized tax benefits	$ 1,258,000	$ 1,179,000	$ 1,101,000	$ 1,444,000
Unrecognized tax benefits that would favorably impact effective income tax expense if recognized	1,300,000	1,200,000
Gross amount of interest and penalties due to unrecognized tax benefits	$ 281,000	$ 239,000