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Income Taxes - Deferred Income Taxes - Narrative (Detail) - USD ($) $ in Thousands | 12 Months Ended |
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May 01, 2022 | May 02, 2021
Income Taxes [Line Items] |  |
foreign income tax credits - U.S. | $ 783 | $ 783
U.S. foreign income tax credits, expiration period | 10 years |
U.S. Federal Tax Authorities [Member] |  |
Income Taxes [Line Items] |  |
Operating Loss Carryforwards | $ 23,700 |
Operating loss carryforwards, related future tax benefits | 5,000 |
U.S. State and Local Jurisdiction [Member] |  |
Income Taxes [Line Items] |  |
Operating Loss Carryforwards | 28,000 |
Operating loss carryforwards, related future tax benefits | $ 1,000 |
U.S. State and Local Jurisdiction [Member] | Earliest Tax Year [Member] |  |
Income Taxes [Line Items] |  |
Operating Loss Carry forwards Expiration Year | 2023 |
U.S. State and Local Jurisdiction [Member] | Latest Tax Year [Member] |  |
Income Taxes [Line Items] |  |
Operating Loss Carry forwards Expiration Year | 2043 |
U.S. Foreign [Member] | Earliest Tax Year [Member] |  |
Income Taxes [Line Items] |  |
Operating Loss Carry forwards Expiration Year | 2026 |
U.S. Foreign [Member] | Latest Tax Year [Member] |  |
Income Taxes [Line Items] |  |
Operating Loss Carry forwards Expiration Year | 2028 |

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