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Note 5 - Accounts Receivable (Tables)
9 Months Ended
Aug. 31, 2025
Notes Tables  
Accounts Receivable, Allowance for Credit Loss [Table Text Block]
  

Nine Months Ended (Continuing operations)

  

Nine Months Ended (Continuing operations)

 
  

August 31, 2025

  

August 31, 2024

 

Balance, beginning

 $108,636  $32,137 

Provision charged to expense

  (63,947)  37,128 

Less amounts charged-off

  -   (12,619)

Balance, ending

 $44,689  $56,646