Note 19 - Stockholders' Equity (Tables)

12 Months Ended

May 31, 2025

Notes Tables

Share-Based Payment Arrangement, Option, Activity [Table Text Block]

EIP Time-based stock option activity
										*Weighted-*
						*Weighted-*				*average*
						*average*				*remaining*
		*Stock*				*exercise*				*contractual*				*Aggregate*
		*Options*				*price*				*term (years)*				*intrinsic value*
Balance, May 31, 2024			2,797,787			$	14.53				4.0			$	—
Granted			—				—				—				—
Exercised			—				—				—				—
Forfeited			—				—				—				—
Cancelled			(11,758	)			7.76				—				—
Balance, May 31, 2025			2,786,029			$	14.55				3.0			$	—

Original plan time-based stock option activity
										*Weighted-*
						*Weighted-*				*average*
						*average*				*remaining*
		*Stock*				*exercise*				*contractual*				*Aggregate*
		*Options*				*price*				*term (years)*				*intrinsic value*
Balance, May 31, 2024			49,166			$	3.46				3.0			$	1.43
Exercised			—				—				—				—
Forfeited			—				—				—				—
Cancelled			(36,206	)			3.00				—				—
Balance, May 31, 2025			12,960			$	4.77				2.6			$	—

Predecessor Plan [Member]

Notes Tables

Share-Based Payment Arrangement, Option, Activity [Table Text Block]

										*Weighted*				*Weighted*
						*Weighted*				*average*				*average*
						*average*				*grant*				*remaining*				*Aggregate*
		*Number of*				*exercise*				*date fair*				*contractual*				*Intrinsic*
		*options*				*price*				*value*				*term (years)*				*Amount*
Outstanding, beginning of the year			434,212			$	7.56			$	—				0.7				—
Exercised during the year			—				—				—				—				N/A
Granted during the year			—				—				—				—				N/A
Forfeited during the year			—				—				—				—				N/A
Expired during the year			(388,989	)			7.38				—				—				N/A
Outstanding, end of the year			45,223			$	9.12			$	—				2.53				—
Vested and exercisable, end of the year			45,223			$	9.12			$	—				2.53				—

		*May 31, 2025*
										*Weighted*				*Weighted*
						*Weighted*				*average*				*average*
						*average*				*grant*				*remaining*				*Aggregate*
		*Number of*				*exercise*				*date fair*				*contractual*				*Intrinsic*
		*options*				*price*				*value*				*term (years)*				*Amount*
Outstanding, beginning of the year			1,144,218			$	53.40			$	—				1.2				—
Exercised during the year			—				—				—				—				—
Converted upon acquisition			—				—				—				—				—
Forfeited during the year			—				—				—				—				—
Expired during the year			(957,045	)			17.97				—				—				—
Outstanding, end of the year			187,173			$	234.53			$	—			$	5.84			$	—
Vested and exercisable, end of the year			177,426			$	247.00			$	—				5.75				—

Share-Based Payment Arrangement, Restricted Stock Unit, Activity [Table Text Block]

		*May 31, 2025*
						*Weighted*
						*average*
						*grant -*
						*date fair*
		*Time- based*				*value per*
		*RSUs*				*share*
Non-vested, beginning of the year			244,193			$	13.91
Granted during the year			—				—
Vested during the year			(33,276	)			0.46
Forfeited during the year			—				—
Non-vested, end of the year			210,917			$	16.03

E I P Original Plan [Member]

Notes Tables

Share-Based Payment Arrangement, Restricted Stock Unit, Activity [Table Text Block]

Time-based and Performance-based RSU activity
						*Weighted-*				*Weighted-*
						*average*				*average*
						*grant-date*				*remaining*
		*Time-based*				*fair value*				*contractual*				*Aggregate*
		*RSUs*				*per share*				*term (years)*				*intrinsic value*
Balance, May 31, 2024			26,134,852			$	3.16				2.9			$	47,043
Granted			13,774,358				1.96				—				5,779
Vested			(10,027,649	)			2.94				—				(4,374	)
Forfeited			(2,082,103	)			3.60				—				(1,009	)
Cancelled			(93,750	)			2.68				—				(40	)
Balance, May 31, 2025			27,705,708			$	2.60				2.90			$	11,794