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Note 3 - Inventory (Tables)
9 Months Ended
Feb. 28, 2025
Notes Tables  
Schedule of Inventory, Current [Table Text Block]
   

February 28,

   

May 31,

 
   

2025

   

2024

 

Raw materials

  $ 2,083,958     $ 2,040,348  

Finished goods

    1,105,754       1,831,278  

Total inventory

  $ 3,189,712     $ 3,871,626