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Note 25 - Fair Value Measurements (Tables)
6 Months Ended
Nov. 30, 2024
Notes Tables  
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]
              November 30, 
  

Level 1

  

Level 2

  

Level 3

  2024 

Financial assets

                

Cash and cash equivalents

 $189,698  $  $  $189,698 

Marketable securities

  62,551         62,551 

Convertible notes receivable

        32,000   32,000 

Equity investments measured at fair value

  935   981   5,500   7,416 

Financial liabilities

                

Warrant liability

        (1,695)  (1,695)

Contingent consideration

        (15,000)  (15,000)

APHA 24 Convertible debenture

            

Total recurring fair value measurements

 $253,184  $981  $20,805  $274,970 
              May 31, 
  

Level 1

  

Level 2

  

Level 3

  2024 

Financial assets

                

Cash and cash equivalents

 $228,340  $  $  $228,340 

Marketable securities

  32,182         32,182 

Convertible notes receivable

        32,000   32,000 

Equity investments measured at fair value

  919   1,440   5,500   7,859 

Financial liabilities

                

Warrant liability

        (3,253)  (3,253)

Contingent consideration

        (15,000)  (15,000)

APHA 24 Convertible debenture

        (330)  (330)

Total recurring fair value measurements

 $261,441  $1,440  $18,917  $281,798 
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block]
                  APHA 24 
  Convertible  Equity  Warrant  Contingent  Convertible 
  

notes receivable

  

Investments

  

Liability

  

Consideration

  

Debt

 

Balance, May 31, 2024

 $32,000  $5,500  $(3,253) $(15,000) $(330)

Additions/(Repayments)

              330 

Unrealized gain (loss) on fair value

        1,558       

Balance, November 30, 2024

 $32,000  $5,500  $(1,695) $(15,000) $ 
Fair Value Measurement Inputs and Valuation Techniques [Table Text Block]
    

Significant

   
  

Valuation

 

unobservable

  

Financial asset / financial liability

 

technique

 

input

 

Inputs

 

Warrant liability

 

Black-Scholes

 

Volatility,

 

50%

 
    

expected life (in years)

 

0.8

 

Contingent consideration

 

Discounted cash flows

 

Discount rate,

 

11%

 
    

Probability of achievement

 

100% and 0%