Note 22 - Non-operating (Expense) Income - Components of Non-operating Income (Expense) (Details) - USD ($) $ in Thousands	3 Months Ended
	Aug. 31, 2023	Aug. 31, 2022
Change in fair value of convertible debenture payable	$ (2,147)	$ (7,884)
Change in fair value of warrant liability	(8,198)	1,548
Foreign exchange loss (gain)	6,267	(25,573)
Loss on long-term investments	(109)	(1,008)
Other non-operating (losses) gains, net	(215)	(75)
Total	$ (4,402)	$ (32,992)