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Note 6 - Contract Receivables, Contract Assets and Contract Liabilities (Tables)
9 Months Ended
Aug. 31, 2025
Notes Tables  
Contract with Customer, Contract Asset, Contract Liability, and Receivable [Table Text Block]
  

August 31, 2025

  

November 30, 2024

 

Receivables

 $2,024,000  $2,373,000 

Assets

  659,000   213,000 

Liabilities

  425,000   2,110,000