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Note 3 - Inventory (Tables)
3 Months Ended
Aug. 31, 2025
Notes Tables  
Schedule of Inventory, Current [Table Text Block]
   

August 31,

   

May 31,

 
   

2025

   

2025

 

Raw materials

  $ 2,650,408     $ 2,137,159  

Finished goods

    824,749       1,346,879  

Total inventory

  $ 3,475,157     $ 3,484,038