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Note 3 - Inventory (Tables)
9 Months Ended
Feb. 29, 2024
Notes Tables  
Schedule of Inventory, Current [Table Text Block]
   

February 29,

   

May 31,

 
   

2024

   

2023

 

Raw materials

  $ 1,933,401     $ 2,299,911  

Finished goods

    1,069,353       2,184,195  

Total inventory

  $ 3,002,754     $ 4,484,106