Note 5 - Derivative Financial Instruments (Details Textual) - USD ($) $ in Millions	Jan. 25, 2025	Apr. 27, 2024
Derivative, Notional Amount	$ 73.0
Price Risk Cash Flow Hedge Unrealized Gain (Loss) to be Reclassified During Next 12 Months	6.7
Derivative Asset	8.2
Derivative Liability, Current	$ 0.1
Derivative Asset, Current		$ 5.7
Derivative Liability, Current, Statement of Financial Position [Extensible Enumeration]	Accrued Liabilities, Current
Derivative Asset, Current, Statement of Financial Position [Extensible Enumeration]		Prepaid Expense and Other Assets, Current
Prepaid And Other Assets [Member]
Derivative Asset	$ 6.8
Other Assets [Member]
Derivative Asset	$ 1.4