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Note 4 - Contract Receivables, Contract Assets and Contract Liabilities (Tables)
6 Months Ended
May 31, 2022
Notes Tables  
Contract with Customer, Contract Asset, Contract Liability, and Receivable [Table Text Block]
   

May 31, 2022

   

November 30, 2021

 

Receivables

  $ 2,481,000     $ 2,663,000  

Assets

    522,000       177,000  

Liabilities

    1,903,000       559,000