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Note 1 - Significant Accounting Policies (Details Textual) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Oct. 30, 2021
Oct. 31, 2020
Oct. 30, 2021
Oct. 31, 2020
May 01, 2021
Inventory, Finished Goods, Gross, Total $ 44.5   $ 44.5   $ 43.3
Inventory, Raw Materials, Gross, Total 34.3   34.3   $ 28.2
Employee-related Liabilities, Total 9.5   9.5    
Accrued Container Deposit 9.1   9.1    
Marketing Expense 10.8 $ 10.0 23.2 $ 19.9  
Shipping and Handling Costs $ 21.7 $ 18.5 $ 44.4 $ 37.9