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7. Fair Value Measurements (Tables)
 9 Months Ended
Oct. 29, 2017
Fair Value Disclosures [Abstract]  
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]
Our assets measured at fair value on a recurring basis at October 29, 2017 and January 29, 2017, were as follows:

   
Fair value at October 29, 2017
    
Fair value at January 29, 2017
  
Description
  
Level 1
    
Level 2
    
Level 3
    
Total
    
Level 1
    
Level 2
    
Level 3
    
Total
  
                                                 
Assets measured at fair value
                                                
Company-owned life insurance
  
$
-
    
$
23,322
    
$
-
    
$
23,322
    
$
-
    
$
22,366
    
$
-
    
$
22,366
  
Pension plan assets*
    
13,881
      
-
      
-
      
13,881
      
13,881
      
-
      
-
      
13,881
  
* as of January 29, 2017 for Pension Plan assets.