XML 18 R26.htm IDEA: XBRL DOCUMENT v3.20.1
Note 11 - Revenue Recognition (Tables)
3 Months Ended
Jan. 31, 2020
Notes Tables  
Revenue from External Customers by Geographic Areas [Table Text Block]
   

Three months ended

 
   

January 31,

 
   

2020

   

2019

 

United States

  $ 10,488,348     $ 13,574,401  

Outside the United States

    2,399,048       3,176,267  

Total net sales

  $ 12,887,396     $ 16,750,668