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Income Taxes - Differences Between Income Tax Expense from Continuing Operations at Federal Income Tax Rate and Effective Income Tax Rate (Parenthetical) (Details) - USD ($)
12 Months Ended
Apr. 30, 2023
May 01, 2022
May 02, 2021
Income Taxes [Line Items]      
Pre-tax income (loss) $ (28,390,000) $ (325,000) $ 10,880,000
United States [Member]      
Income Taxes [Line Items]      
Pre-tax income (loss) $ (33,500,000) $ (7,600,000) $ (4,700,000)