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Note 4 - Accounts Receivable (Tables)
6 Months Ended
May 30, 2020
Notes Tables  
Schedule Of Accounts Receivable [Table Text Block]
   

May 30,

2020

   

November 30,

2019

 

Gross accounts receivable

  $ 19,500     $ 22,193  

Allowance for doubtful accounts

    (1,701 )     (815 )

Accounts receivable, net

  $ 17,799     $ 21,378  
Financing Receivable, Current, Allowance for Credit Loss [Table Text Block]

Balance at November 30, 2019

  $ 815  

Additions charged to expense

    1,074  

Write-offs against allowance

    (188 )

Balance at May 30, 2020

  $ 1,701