Equity - Warrant exercises (Details) - $ / shares shares in Millions	9 Months Ended	12 Months Ended
Feb. 28, 2026	May 31, 2025
Equity
Cashless exercise of warrants, shares	0.4	1.9
Cashless exercise of warrants, warrants	0.6	2.6
Cashless exercise of warrants, exercise price	$ 0.09387	$ 0.09387

Exercise price per share or per unit of warrants or rights outstanding when exercised on a cashless basis.

No definition available.

Name:	cydy_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRightsCashlessExercise
Namespace Prefix:	cydy_
Data Type:	dtr-types:perShareItemType
Balance Type:	na
Period Type:	instant