Note 29 - Fair Value Measurements - Assets and Liabilities Measured on a Recurring Basis - Inputs Used to Recognize Unrealized Gain (Loss) on Fair Value (Details)	May 31, 2025
Valuation Technique, Discounted Cash Flow [Member] \| Measurement Input, Probability of Achievement [Member]
Equity investments	0.70
Minimum [Member] \| Valuation Technique, Option Pricing Model [Member] \| Measurement Input, Conversion Rate [Member]
Contingent consideration	0
Minimum [Member] \| Valuation Technique, Option Pricing Model [Member] \| Measurement Input, Price Volatility [Member]
Warrant liability	0.50
Minimum [Member] \| Valuation Technique, Option Pricing Model [Member] \| Measurement Input, Expected Term [Member]
Warrant liability	0.3
Minimum [Member] \| Valuation Technique, Discounted Cash Flow [Member] \| Measurement Input, Discount Rate [Member]
Contingent consideration	0.11
Maximum [Member] \| Valuation Technique, Option Pricing Model [Member] \| Measurement Input, Conversion Rate [Member]
Contingent consideration	1