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Property, Plant and Equipment (Tables)
9 Months Ended
Feb. 28, 2023
Property, Plant and Equipment [Abstract]  
Schedule of Property, Plant and Equipment

A summary of property, plant and equipment is as follows:

 

  

February 28,

2023

  

May 31,

2022

 
Production machinery and equipment  $60,395,743   $57,341,906 
Plant buildings and land   2,364,089    7,020,543 
Leasehold improvements   1,553,138    1,487,398 
Furniture and fixtures   542,057    542,057 
Property plant and equipment gross   64,855,027    66,391,904 
Less: Accumulated depreciation and amortization   (36,335,865)   (34,515,139)
           
Net Property, Plant and Equipment  $28,519,162   $31,876,765