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Note 4 - Earnings Per Share (Tables)
3 Months Ended
Mar. 31, 2013
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]
   
13 Weeks Ended
 
   
2013
   
2012
 
             
Earnings from continuing operations
  $ 12.9     $ 9.2  
Less: Earnings allocated to participating securities
    (0.3 )     (0.2 )
Earnings from continuing operations available to common shareholders
  $ 12.6     $ 9.0  
                 
Earnings from discontinued operations
  $ -     $ 0.4  
Less: Earnings allocated to participating securities
    -       -  
Earnings from discontinued operations available to common shareholders
  $ -     $ 0.4  
                 
Net Earnings
  $ 12.9     $ 9.6  
Less: Earnings allocated to participating securities
    (0.3 )     (0.2 )
Net Earnings available to common shareholders
  $ 12.6     $ 9.4  
                 
Basic earnings per share on common stock:                
Earnings from continuing operations
  $ 0.34     $ 0.24  
Earnings from discontinued operations
  $ -     $ 0.01  
Net earnings
  $ 0.34     $ 0.26  
                 
Diluted earnings per share on common stock:
               
Earnings from continuing operations
  $ 0.34     $ 0.24  
Earnings from discontinued operations
  $ -     $ 0.01  
Net earnings
  $ 0.34     $ 0.26  
                 
Average common shares outstanding (millions)
               
Basic
    37.2       36.9  
Diluted
    37.2       36.9