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Note 5 - Derivative Financial Instruments (Details Textual) - USD ($)
$ in Millions
Jan. 30, 2021
May 02, 2020
Derivative, Notional Amount $ 20.1  
Price Risk Cash Flow Hedge Unrealized Gain (Loss) to be Reclassified During Next 12 Months 3.4  
Accrued Liabilities1 [Member]    
Derivative Liability, Current $ 3.4 $ 6.9