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Note 4 - Property and Equipment, Net (Tables)
12 Months Ended
Oct. 31, 2025
Notes Tables  
Property, Plant and Equipment [Table Text Block]
   

October 31,

 
   

2025

   

2024

 

Land and land improvements

  $ 3,148,834     $ 3,148,834  

Buildings and improvements

    8,351,812       8,305,039  

Machinery and equipment

    25,989,432       26,032,752  

Furniture and fixtures

    876,648       902,012  

Construction in progress

    261,220       162,288  

Total property and equipment, at cost

    38,627,946       38,550,925  

Less accumulated amortization and depreciation

    (32,038,429 )     (31,669,568 )

Property and equipment, net

  $ 6,589,517     $ 6,881,357