v3.26.3
Note 5 - Property, Plant and Equipment (Tables)
3 Months Ended
Aug. 31, 2026
Notes Tables  
Property, Plant, and Equipment [Table Text Block]
   

August 31,

   

May 31,

 
   

2026

   

2026

 

Production machinery and equipment

  $ 72,985,906     $ 72,855,503  

Plant buildings and land

    3,930,207       3,930,207  

Leasehold improvements

    2,447,630       2,447,630  

Furniture and fixtures

    542,057       542,057  

Construction in progress

    706,826       706,826  
      80,612,626       80,482,223  

Less: Accumulated depreciation and amortization

    (56,026,934

)

    (54,639,464

)

Net Property, Plant and Equipment

  $ 24,585,692     $ 25,842,759