Note 6 - Warrants (Details Textual) - USD ($)				3 Months Ended	6 Months Ended
	Nov. 25, 2025	Oct. 28, 2025	Oct. 31, 2021	Oct. 31, 2025	Oct. 31, 2025	Oct. 31, 2024
Proceeds from Warrant Exercises					$ 50,000	$ 0
Class of Warrant or Right, Outstanding (in shares)				0	0
Class of Warrant or Right, Forfeitures and Expirations in Period (in shares)				0
Warrants Issued for Future Services [Member]
Class of Warrant or Right, Issued During the Period (in shares)			2,000,000
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share)			$ 0.0442
Proceeds from Warrant Exercises		$ 50,000
Warrants Issued for Future Services [Member] | Subsequent Event [Member]
Class of Warrant or Right, Issued During the Period (in shares)	500,000
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share)	$ 0.02