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Note 5 - Accounts Receivable (Tables)
12 Months Ended
Nov. 28, 2020
Notes Tables  
Schedule Of Accounts Receivable [Table Text Block]
   

November 28, 2020

   

November 30, 2019

 

Gross accounts receivable

  $ 23,551     $ 22,193  

Allowance for doubtful accounts

    (1,211 )     (815 )

Net accounts receivable

  $ 22,340     $ 21,378  
Financing Receivable, Current, Allowance for Credit Loss [Table Text Block]
   

2020

   

2019

 
                 

Balance, beginning of the year

  $ 815     $ 754  

Additions charged to expense

    492       61  

Reductions to allowance, net

    (96 )     -  

Balance, end of the year

  $ 1,211     $ 815