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Income Taxes - Summary of Income Taxes Paid (Refunded) (Detail) - USD ($) $ in Thousands | 12 Months Ended
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Apr. 27, 2025 | Apr. 28, 2024 | Apr. 30, 2023
Income Taxes [Line Items] |  |  |
Total income tax payments, net | $ 2,304 | $ 3,284 | $ 2,324
Domestic Tax Authority | United States [Member] |  |  |
Income Taxes [Line Items] |  |  |
United States Transition Tax Payment | 665 | 499 | 265
Foreign Tax Authority | China [Member] |  |  |
Income Taxes [Line Items] |  |  |
Total income tax payments, net | 1,785 | 2,317 | 1,831
Foreign Tax Authority | Canada [Member] |  |  |
Income Taxes [Line Items] |  |  |
Total income tax payments, net | $ (146) | $ 468 | $ 228

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- Definition Amount, after refund, of cash paid to foreign, federal, state, and local jurisdictions as income tax. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 230 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2A -Publisher FASB -URI https://asc.fasb.org/1943274/2147482913/230-10-50-2A Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 23 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482685/740-10-50-23 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 22 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482685/740-10-50-22 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482913/230-10-50-2 + Details
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- Definition Amount of tax liability from transition tax on accumulated earnings of controlled foreign corporation deemed repatriated pursuant to Tax Cuts and Jobs Act. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 740 -Name Accounting Standards Codification -Publisher FASB -URI https://asc.fasb.org/740/tableOfContent + Details
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