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Share-Based Compensation (Tables)
6 Months Ended
Jul. 29, 2012
Share-Based Compensation [Abstract]  
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value
 
 
Fiscal 2012 Ended
  
Thirteen Week Periods Ended
  
Twenty-Six Week Periods Ended
 
 
 
January 29, 2012
  
July 29, 2012
  
July 31, 2011
  
July 29, 2012
  
July 31, 2011
 
Stock options granted 
  
22,500
   
175,000
   
22,500
   
190,000
   
22,500
 
 
                    
Weighted average exercise price
 
$
10.60
   
9.45
   
10.60
   
9.41
   
10.60
 
 
                    
Weighted average grant date fair value 
 
$
4.65
   
3.90
   
4.65
   
3.92
   
4.65
 
 
                    
Expected price volatility
  
58.34
%
  
47.68
%
  
58.37
%
  
48.23
%
  
58.37
%
 
                    
Risk-free interest rate
  
0.94
%
  
0.61
%
  
0.94
%
  
0.59
%
  
0.94
%
 
                    
Weighted average expected lives in years 
  
3.8
   
7.4
   
3.8
   
7.2
   
3.8
 
 
                    
Dividend yield
  
0.00
%
  
0.00
%
  
0.00
%
  
0.00
%
  
0.00
%