Quarterly report pursuant to Section 13 or 15(d)

Note 5 - Inventory (Tables)

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Note 5 - Inventory (Tables)
 3 Months Ended
Aug. 31, 2018
Inventory Disclosure [Abstract]  
Schedule of Inventory, Current [Table Text Block]
Inventory, consisting of material, overhead, labor, and manufacturing overhead, is stated at the lower of cost (first-in, first-out) or market, and consists of the following:

   

August 31,

   

May 31,

  
   

2018

    

2018

  

Raw materials

   $ 197,475     $ -  

Finished goods

     301,924       -  

Total

   $ 499,399     $ -