v3.26.1
Note 8 - Long Term Investments (Tables)
9 Months Ended
Feb. 28, 2026
Notes Tables  
Debt Securities, Trading, and Equity Securities, FV-NI [Table Text Block]
  February 28,  May 31, 
  2026  2025 

Equity investments measured at fair value

 $3,270  $1,972 

Equity investments under measurement alternative

  4,364   8,160 

Total

 $7,634  $10,132