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4. Accounts Receivable (Tables)
6 Months Ended
Jul. 29, 2018
Receivables [Abstract]  
Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block]
         

July 29,

   

January 28,

 
         

2018

   

2018

 
                       

Trade accounts receivable

  $ 88,842     $ 98,592  

Other accounts receivable allowances

    (4,429 )     (5,117 )

Allowance for doubtful accounts

    (829 )     (1,014 )

   Accounts receivable

  $ 83,584     $ 92,461