Note 10 - Revenue and Revenue Recognition (Details Textual) - USD ($)	3 Months Ended		9 Months Ended
	Feb. 28, 2026	Feb. 28, 2025	Feb. 28, 2026	Feb. 28, 2025
Loss On Revenue	$ 3,471,399	$ 14,315,798	$ 21,973,016	$ 39,911,692
Non-US [Member]
Loss On Revenue			$ 555,000	$ 375,000