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Note 4 - Property and Equipment, Net (Tables)
12 Months Ended
Oct. 31, 2022
Notes Tables  
Property, Plant and Equipment [Table Text Block]
   

October 31,

 
   

2022

   

2021

 

Land and land improvements

  $ 3,148,834     $ 3,148,834  

Buildings and improvements

    8,311,953       8,303,055  

Machinery and equipment

    26,909,968       27,214,996  

Furniture and fixtures

    902,012       904,256  

Construction in progress

    230,163       171,499  

Total property and equipment, at cost

    39,502,930       39,742,640  

Less accumulated amortization and depreciation

    (32,112,645 )     (31,829,789 )

Property and equipment, net

  $ 7,390,285     $ 7,912,851