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Note 5 - Stock-Based Compensation (Details) (USD $)
In Millions, except Share data, unless otherwise specified
6 Months Ended
Jun. 29, 2014
Jun. 30, 2013
Note 5 - Stock-Based Compensation (Details) [Line Items]    
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Intrinsic Value $ 3.0  
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Intrinsic Value 3.0  
Employee Stock Option [Member]
   
Note 5 - Stock-Based Compensation (Details) [Line Items]    
Allocated Share-based Compensation Expense   0.1
Restricted Stock [Member]
   
Note 5 - Stock-Based Compensation (Details) [Line Items]    
Allocated Share-based Compensation Expense 2.7 2.6
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period (in Shares) 490,000 598,000
Employee Service Share-based Compensation, Nonvested Awards, Compensation Not yet Recognized, Share-based Awards Other than Options 13.9  
Employee Service Share-based Compensation, Tax Benefit Realized from Exercise of Stock Options $ (0.7) $ (1.3)
Restricted Stock [Member] | Minimum [Member]
   
Note 5 - Stock-Based Compensation (Details) [Line Items]    
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period 2 years  
Restricted Stock [Member] | Maximum [Member]
   
Note 5 - Stock-Based Compensation (Details) [Line Items]    
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period 5 years