v3.26.1
Note 3 - Allowance for Credit Losses for Trade Accounts Receivable (Tables)
6 Months Ended
Apr. 30, 2026
Notes Tables  
Accounts Receivable, Allowance for Credit Loss [Table Text Block]
   

Six Months Ended

 
   

April 30,

 
   

2026

   

2025

 

Balance at beginning of period

  $ 72,909     $ 92,125  

Bad debt expense (recovery)

    9,779       (27,232 )

Balance at end of period

  $ 82,688     $ 64,893