Income Taxes - GILTI - Narrative (Detail) - USD ($) $ in Thousands		12 Months Ended
		Apr. 28, 2024	Apr. 30, 2023	May 01, 2022
Income Taxes [Line Items]
U.S. federal income tax rate		21.00%	21.00%	21.00%
Income tax charge (Benefit)		$ 3,049	$ 3,130	$ 2,886
Effective income tax rate	[1],[2],[3]	(28.30%)	(11.00%)	(888.00%)
GILTI [Member] | China [Member]
Income Taxes [Line Items]
Minimum effective income tax rate required to meet the high-tax exception provision				18.90%
Income tax charge (Benefit)				$ 1,800
GILTI [Member] | China [Member] | Valuation Allowance, Net Deferred Tax Assets [Member]
Income Taxes [Line Items]
Income tax charge (Benefit)				$ (1,800)
GILTI [Member] | Canada [Member]
Income Taxes [Line Items]
Minimum effective income tax rate required to meet the high-tax exception provision				18.90%
GILTI [Member] | Haiti [Member]
Income Taxes [Line Items]
Minimum effective income tax rate required to meet the high-tax exception provision				18.90%
Effective income tax rate				0.00%
GILTI [Member] | Haiti [Member] | Economic Zone
Income Taxes [Line Items]
Effective income tax rate				0.00%
Income tax rate exemption for available period				first fifteen years
Income tax rate exemption for remaining period				8 years

[1] During fiscal 2023, we incurred a significantly higher consolidated pre-tax loss totaling $(28.4) million, compared with a much lower consolidated pre-tax loss totaling $(325,000) during fiscal 2022. As a result, the principal differences between income tax expense at the U.S. federal income tax rate and the effective income tax rate reflected in the consolidated financial statements were more pronounced for fiscal 2022, compared with fiscal 2023.

[2] During fiscal 2024, we incurred a significantly lower consolidated pre-tax loss of $(10.8) million, compared with a significantly higher pre-tax loss of $(28.4) million incurred during fiscal 2023. As a result, the principal differences between income tax expense at the U.S. federal income tax rate and the effective income tax rate reflected in the consolidated financial statements were more pronounced during fiscal 2024 compared with fiscal 2023.

[3] Our negative consolidated effective income tax rates during fiscal 2024, 2023, and 2022, were caused by the mix of earnings between our U.S. operations and foreign subsidiaries, as our taxable income stems from our operations located in China and Canada, which have higher income tax rates than the U.S. In addition, we applied a full valuation allowance against our U.S. deferred income tax assets during fiscal 2024, 2023, and 2022, respectively. Consequently, an income tax benefit was not recognized for the pre-tax losses associated with our U.S. operations totaling $(18.6) million, $(33.5) million, and $(7.6) million that were incurred during fiscal 2024, 2023, and 2022, respectively.