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Note 7 - Derivative Financial Instruments (Details Textual) - USD ($)
$ in Millions
May 01, 2021
May 02, 2020
Derivative, Notional Amount $ 6.2  
Price Risk Cash Flow Hedge Unrealized Gain (Loss) to be Reclassified During Next 12 Months 3.6  
Prepaid Expenses and Other Current Assets [Member]    
Derivative Asset, Current $ 3.6  
Accrued Liabilities1 [Member]    
Derivative Liability, Current   $ 6.9