Note 23 - Fair Value Measurements (Tables)

6 Months Ended

Nov. 30, 2022

Notes Tables

Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]

								November 30,
	Level 1		Level 2		Level 3			2022
Financial assets
Cash and cash equivalents	$	190,218	$	—	$	—		$	190,218
Marketable Securities		243,286		—		—			243,286
Convertible notes receivable		—		—		255,310			255,310
Equity investments measured at fair value		893		1,629		5,689			8,211
Financial liabilities
Warrant liability		—		—		(12,670	)		(12,670	)
Contingent consideration		—		—		(26,463	)		(26,463	)
APHA 24 Convertible debenture		—		—		(223,295	)		(223,295	)
Total recurring fair value measurements	$	434,397	$	1,629	$	(1,429	)	$	434,597

								May 31,
	Level 1		Level 2		Level 3			2022
Financial assets
Cash and cash equivalents	$	415,909	$	—	$	—		$	415,909
Convertible notes receivable		—		—		111,200			111,200
Equity investments measured at fair value		1,878		2,469		5,703			10,050
Financial liabilities
Warrant liability		—		—		(14,255	)		(14,255	)
Contingent consideration		—		—		(16,007	)		(16,007	)
APHA 24 Convertible debenture		—		—		(216,753	)		(216,753	)
Total recurring fair value measurements	$	417,787	$	2,469	$	(130,112	)	$	290,144

Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block]

										APHA 24
	Convertible			Warrant			Contingent			Convertible
	notes receivable			Liability			Consideration			Debt			Total
Balance, May 31, 2022	$	111,200		$	(14,255	)	$	(16,007	)	$	(216,753	)	$	(135,815	)
Additions		164,278			—			(10,245	)		—			154,033
Unrealized gain (loss) on fair value		(20,168	)		1,585			(211	)		(6,542	)		(25,336	)
Balance, November 30, 2022	$	255,310		$	(12,670	)	$	(26,463	)	$	(223,295	)	$	(7,118	)

Fair Value Measurement Inputs and Valuation Techniques [Table Text Block]

		Significant
	Valuation	unobservable
Financial asset / financial liability	technique	input	Inputs
APHA Convertible debentures	Black-Scholes	Volatility,	70%
		expected life (in years)	1.5
Warrant liability	Black-Scholes	Volatility,	70%
		expected life (in years)	2.3
Contingent consideration	Discounted cash flows	Discount rate,	5% - 11%
		achievement	25% - 80%
Convertible notes receivable	Black-Scholes	Effective interest rate,	20% - 22%
		conversion	0% - 60%