Note 24 - Financial Risk Management and Financial Instruments (Tables)
|
9 Months Ended |
Feb. 28, 2026 |
|---|
| Notes Tables |
|
| Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block] |
| | | | | | | | | | | | | | | February 28, | |
| | | Level 1 | | | Level 2 | | | Level 3 | | | 2026 | |
| Financial assets | | | | | | | | | | | | | | | | |
| Cash and cash equivalents | | $ | 204,620 | | | $ | — | | | $ | — | | | $ | 204,620 | |
| Restricted cash | | | 44,885 | | | | — | | | | — | | | | 44,885 | |
| Marketable securities | | | 15,312 | | | | — | | | | — | | | | 15,312 | |
| Equity investments measured at fair value | | | 2,253 | | | | 1,017 | | | | 4,364 | | | | 7,634 | |
| Digital assets | | | 614 | | | | — | | | | — | | | | 614 | |
| Total recurring fair value measurements | | $ | 267,684 | | | $ | 1,017 | | | $ | 4,364 | | | $ | 273,065 | |
| | | | | | | | | | | | | | | May 31, | |
| | | Level 1 | | | Level 2 | | | Level 3 | | | 2025 | |
| Financial assets | | | | | | | | | | | | | | | | |
| Cash and cash equivalents | | $ | 221,666 | | | $ | — | | | $ | — | | | $ | 221,666 | |
| Marketable securities | | | 34,697 | | | | — | | | | — | | | | 34,697 | |
| Equity investments measured at fair value | | | 909 | | | | 1,063 | | | | 8,160 | | | | 10,132 | |
| Financial liabilities | | | | | | | | | | | | | | | | |
| Warrant liability | | | — | | | | — | | | | (1,092 | ) | | | (1,092 | ) |
| Contingent consideration | | | — | | | | — | | | | (15,000 | ) | | | (15,000 | ) |
| Total recurring fair value measurements | | $ | 257,272 | | | $ | 1,063 | | | $ | (7,932 | ) | | $ | 250,403 | |
|
| Crypto Asset, Holding [Table Text Block] |
| | | Quantity | | | Cost Basis | | | Fair Value | | | Cumulative Unrealized Gain (Loss) | |
| Bitcoin | | | 9.16 | | | $ | 1,000 | | | $ | 614 | | | $ | (386 | ) |
| Total digital assets | | | 9.16 | | | $ | 1,000 | | | $ | 614 | | | $ | (386 | ) |
|
| Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block] |
| | | Equity | | | Warrant | | | Contingent | |
| | | Investments | | | Liability | | | Consideration | |
| Balance, May 31, 2025 | | $ | 8,160 | | | $ | (1,092 | ) | | $ | (15,000 | ) |
| Unrealized gain (loss) on fair value | | | (3,796 | ) | | | (3,495 | ) | | | 15,000 | |
| Instruments exercised | | | — | | | | 4,587 | | | | — | |
| Balance, February 28, 2026 | | $ | 4,364 | | | $ | — | | | $ | — | |
| | | | | | | | | | | | | | | | | | | 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/(disposals) | | | (12,000 | ) | | | 8,160 | | | | — | | | | — | | | | 330 | |
| Redemption | | | — | | | | — | | | | — | | | | — | | | | — | |
| Unrealized gain (loss) on fair value | | | — | | | | (5,500 | ) | | | 2,896 | | | | — | | | | — | |
| Impairments | | | (20,000 | ) | | | — | | | | — | | | | — | | | | — | |
| Balance, February 28, 2025 | | $ | — | | | $ | 8,160 | | | $ | (357 | ) | | $ | (15,000 | ) | | $ | — | |
|
| Fair Value Measurement Inputs and Valuation Techniques [Table Text Block] |
| | | | | Significant | | | |
| | | Valuation | | unobservable | | | |
| Financial asset / financial liability | | technique | | input | | Inputs | |
| Equity investments | | Discounted cash flows | | Probability of achievement | | 70% | |
|