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Note 4 - Property and Equipment, Net (Tables)
12 Months Ended
Oct. 31, 2023
Notes Tables  
Property, Plant and Equipment [Table Text Block]
   

October 31,

 
   

2023

   

2022

 

Land and land improvements

  $ 3,148,834     $ 3,148,834  

Buildings and improvements

    8,305,039       8,311,953  

Machinery and equipment

    26,185,346       26,909,968  

Furniture and fixtures

    902,012       902,012  

Construction in progress

    199,772       230,163  

Total property and equipment, at cost

    38,741,003       39,502,930  

Less accumulated amortization and depreciation

    (31,601,387 )     (32,112,645 )

Property and equipment, net

  $ 7,139,616     $ 7,390,285