Note 7 - Cash Dividend (Details Textual) $ / shares in Units, $ in Millions	3 Months Ended
	Jul. 27, 2024 USD ($) $ / shares
Dividends, Common Stock, Cash | $	$ 304.1
S2024Q1Dividends [Member]
Common Stock, Dividends, Per Share, Declared (in dollars per share) | $ / shares	$ 3.25