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Fair Value of Financial Instruments (Tables)
 6 Months Ended
Jul. 29, 2017
Fair Value of Financial Instruments [Abstract]  
Financial assets measured at fair value on a recurring basis
The table below segregates all financial assets that are measured at fair value on a recurring basis (at least annually) into the most appropriate level within the fair value hierarchy based on the inputs used to determine the fair value as of July 29, 2017 and January 28, 2017 (in thousands):

  
July 29, 2017
  
January 28, 2017
 
  
Level I
  
Level II
  
Level III
  
Level I
  
Level II
  
Level III
 
Short-term investments
 
$
85
  
$
-
  
$
-
  
$
79
  
$
-
  
$
-
 
Long-term investments
  
2,782
   
-
   
-
   
2,666
   
-
   
-
 
Total investments
 
$
2,867
  
$
-
  
$
-
  
$
2,745
  
$
-
  
$
-