Quarterly report pursuant to Section 13 or 15(d)

Summary of Significant Accounting Policies

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Summary of Significant Accounting Policies
6 Months Ended
Jul. 30, 2011
Summary of Significant Accounting Policies [Abstract]  
Summary of significant accounting policies
2. Summary of significant accounting policies
Information regarding the Company’s significant accounting policies is contained in Note 2, “Summary of significant accounting policies,” to the financial statements in the Company’s Annual Report on Form 10-K for the fiscal year ended January 29, 2011. Presented below in this and the following notes is supplemental information that should be read in conjunction with “Notes to Financial Statements” in the Annual Report.
Fiscal quarter
The Company’s quarterly periods are the 13 weeks ending on the Saturday closest to April 30, July 31, October 31, and January 31. The Company’s second quarters in fiscal 2011 and 2010 ended on July 30, 2011 and July 31, 2010, respectively.
Share-based compensation
The Company measures share-based compensation cost on the grant date, based on the fair value of the award, and recognizes the expense over the requisite service period for awards expected to vest. The Company estimated the grant date fair value of stock options using a Black-Scholes valuation model using the following assumptions for the periods indicated:
                 
    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  
The Company granted 124 and 745 stock options during the six months ended July 30, 2011 and July 31, 2010, respectively. The weighted-average grant date fair value of these options was $28.62 and $11.38, respectively.
The Company recorded stock compensation expense of $2,388 and $2,487 for the three months ended July 30, 2011 and July 31, 2010, respectively. The Company recorded stock compensation expense of $5,196 and $4,222 for the six months ended July 30, 2011 and July 31, 2010, respectively. At July 30, 2011, there was approximately $21,290 of unrecognized compensation expense related to unvested options and restricted stock.