Note 8 - Long-term Investments - Schedule of Long-term Investments (Details) - USD ($) $ in Thousands	Aug. 31, 2026	May 31, 2026
Total	$ 6,365	$ 6,551
Fair Value, Inputs, Level 1 [Member]
Equity investments measured at fair value	1,025	1,197
Fair Value, Inputs, Level 2 [Member]
Equity investments measured at fair value	976	990
Fair Value, Inputs, Level 3 [Member] \| Superhero Acquisition LP [Member]
Equity investments measured at fair value	$ 4,364	$ 4,364

Fair value portion of investments accounted under the equity method.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
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Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef
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Reference 4: http://www.xbrl.org/2003/role/exampleRef
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Reference 7: http://www.xbrl.org/2003/role/disclosureRef
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