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Note 8 - Long-term Investments - Schedule of Long-term Investments (Details) - USD ($) $ in Thousands | Aug. 31, 2025 | May 31, 2024
--- | --- | ---
Equity investments measured at fair value | $ 2,012 | $ 1,972
Equity investments under measurement alternative | 8,160 | 8,160
Total | $ 10,172 | $ 10,132

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