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Note 10 - Shareholders' Equity (Details) - USD ($)
12 Months Ended
Jan. 03, 2016
Jan. 03, 2016
Dec. 28, 2014
Dec. 29, 2013
Nov. 19, 2015
Oct. 07, 2014
Mar. 04, 2012
May. 31, 2010
Note 10 - Shareholders' Equity (Details) [Line Items]                
Common Stock, Shares Authorized (in Shares)             120,000,000  
Common Stock, Par or Stated Value Per Share (in Dollars per share)             $ 0.10  
Common Stock, Shares, Issued (in Shares)             65,372,375  
Common Stock, Dividends, Per Share, Cash Paid (in Dollars per share)   $ 0.18 $ 0.14 $ 0.11        
Stock Based Compensation Rate at which Employee Stock Option Exercisable   100.00%            
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized (in Shares)               5,161,020
Number of Authorized stock, reduce by Issuance by other than Stock Option (in Shares)               1.33
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term 3 years 328 days              
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Remaining Contractual Term 3 years 328 days              
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Intrinsic Value $ 900,000 $ 900,000            
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Intrinsic Value 900,000 900,000            
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Intrinsic Value   400,000 $ 600,000 $ 1,900,000        
Proceeds from Stock Options Exercised   $ 400,000 $ 400,000 1,900,000        
Common Stock [Member]                
Note 10 - Shareholders' Equity (Details) [Line Items]                
Stock Repurchase Program, Number of Shares Authorized to be Repurchased (in Shares)         500,000 500,000    
Treasury Stock, Shares, Acquired (in Shares)   650,000 500,000          
Treasury Stock, Shares, Retired (in Shares)   650,000 500,000          
Treasury Stock Acquired, Average Cost Per Share (in Dollars per share)   $ 20.47 $ 15.30          
Common Class A [Member]                
Note 10 - Shareholders' Equity (Details) [Line Items]                
Common Stock, Shares Authorized (in Shares)             80,000,000  
Common Stock, Par or Stated Value Per Share (in Dollars per share)             $ 0.10  
Common Class B [Member]                
Note 10 - Shareholders' Equity (Details) [Line Items]                
Common Stock, Shares Authorized (in Shares)             40,000,000  
Common Stock, Par or Stated Value Per Share (in Dollars per share)             $ 0.10  
Maximum Percentage of Issued Shares to Outstanding Shares             10.00%  
Common Stock, Shares, Issued (in Shares)             6,459,556  
Employee Stock Option [Member]                
Note 10 - Shareholders' Equity (Details) [Line Items]                
Allocated Share-based Compensation Expense   $ 0 $ 0 100,000        
Restricted Stock [Member]                
Note 10 - Shareholders' Equity (Details) [Line Items]                
Allocated Share-based Compensation Expense   $ 13,900,000 $ 4,000,000 $ 7,900,000        
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period (in Shares)   597,000 489,000 670,000        
Employee Service Share-based Compensation, Nonvested Awards, Compensation Not yet Recognized, Share-based Awards Other than Options $ 9,700,000 $ 9,700,000            
Employee Service Share-based Compensation, Tax Benefit Realized from Exercise of Stock Options   $ 5,500,000 $ 1,000,000 $ 3,000,000        
Minimum [Member] | Employee Stock Option [Member]                
Note 10 - Shareholders' Equity (Details) [Line Items]                
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period   1 year            
Share-based Compensation Arrangement by Share Based Payment Award Award, Exercisable Period   3 years            
Minimum [Member] | Restricted Stock [Member]                
Note 10 - Shareholders' Equity (Details) [Line Items]                
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period   2 years            
Maximum [Member] | Employee Stock Option [Member]                
Note 10 - Shareholders' Equity (Details) [Line Items]                
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period   5 years            
Share-based Compensation Arrangement by Share Based Payment Award Award, Exercisable Period   10 years            
Maximum [Member] | Restricted Stock [Member]                
Note 10 - Shareholders' Equity (Details) [Line Items]                
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period   5 years