Quarterly report pursuant to Section 13 or 15(d)

Summary of Significant Accounting policies (Tables)

 v2.3.0.11
Summary of Significant Accounting policies (Tables)
 6 Months Ended
Jul. 30, 2011
Summary of Significant Accounting Policies [Abstract]  
Fair value of stock option using a Black-Scholes valuation model
                 
    Six months ended  
    July 30, 2011     July 31, 2010  
Volatility rate
    54.2 %     58.8 %
Average risk-free interest rate
    2.4 %     2.2 %
Average expected life (in years)
    6.3       4.8  
Dividend yield
  None     None