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Note 4 - Property and Equipment, Net (Tables)
12 Months Ended
Oct. 31, 2020
Notes Tables  
Property, Plant and Equipment [Table Text Block]
  

October 31,

 
  

2020

  

2019

 

Land and land improvements

 $3,148,834  $3,148,834 

Building and improvements

  8,245,585   8,245,585 

Machinery and equipment

  27,476,894   27,474,099 

Furniture and fixtures

  904,256   904,256 

Construction in progress

  217,137   254,471 

Total property and equipment, at cost

  39,992,706   40,027,245 

Less accumulated amortization and depreciation

  (31,180,843)  (30,017,022)

Property and equipment, net

 $8,811,863  $10,010,223