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Note 8 - Stock-Based Compensation (Tables)
6 Months Ended
Aug. 30, 2014
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]  
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]
   
Six Months Ended
 
Black-Scholes Valuation Assumptions  (1)
 
August 30,
2014
   
August 31,
2013
 
             
Weighted Average Expected Life (in years)  (2)
    6.6       6.6  
Weighted Average Expected Volatility  (3)
    28.31 %     29.27 %
Weighted Average Risk Free Interest Rates  (4)
    2.11 %     1.11 %
Expected Dividend Yield
    -       -  
Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block]
(Shares in thousands)
 
Number of
Stock Options
   
Weighted Average
Exercise Price
 
Options outstanding, beginning of period
    4,192     $ 46.85  
Granted
    523       62.34  
Exercised
    (252 )     38.56  
Forfeited or expired
    -       -  
Options outstanding, end of period
    4,463     $ 49.13  
Options exercisable, end of period
    2,771     $ 41.96  
Schedule of Share-based Compensation, Restricted Stock Units Award Activity [Table Text Block]
(Shares in thousands)
 
Number of Restricted
Shares
   
Weighted Average
Grant-Date
Fair Value
 
Unvested restricted stock, beginning of period
    3,943     $ 53.66  
Granted
    786       62.11  
Vested
    (985 )     44.78  
Forfeited
    (75 )     60.83  
Unvested restricted stock, end of period
    3,669     $ 57.71