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Note 11 - Revenue Recognition (Tables)
9 Months Ended
Jul. 31, 2023
Notes Tables  
Revenue from External Customers by Geographic Areas [Table Text Block]
   

Three months ended

   

Nine months ended

 
   

July 31,

   

July 31,

 
   

2023

   

2022

   

2023

   

2022

 

United States

  $ 14,220,273     $ 14,667,822     $ 44,627,575     $ 41,604,490  

Outside the United States

    2,721,105       2,714,818       10,217,014       7,419,023  

Total net sales

  $ 16,941,378     $ 17,382,640     $ 54,844,589     $ 49,023,513