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8. Fair Value Measurements (Tables)
 6 Months Ended
Jul. 31, 2016
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 July 31, 2016 and January 31, 2016, respectively, were as follows:

   
Fair value at July 31, 2016*
    
Fair value at January 31, 2016
  
Description
  
Level 1
    
Level 2
    
Level 3
    
Total
    
Level 1
    
Level 2
    
Level 3
    
Total
  
    (In thousands)  
Assets measured at fair value
                                                
Company-owned life insurance
  
$
-
    
$
21,907
    
$
-
    
$
21,907
    
$
-
    
$
21,888
    
$
-
    
$
21,888
  
Mortgage note receivable
    
-
      
-
      
1,561
      
1,561
      
-
      
-
      
1,575
      
1,575
  
Pension plan assets
    
11,585
                      
11,585
                                  
*February 2, 2016 for Pension plan assets