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Note 2 - Summary of Significant Accounting Policies (Detail) (USD $)
Share data in Millions, unless otherwise specified
 12 Months Ended
Dec. 29, 2012
Dec. 31, 2011
Jan. 01, 2011
Jan. 02, 2010
Inventory, Supplies, Net of Reserves (in Dollars) $ 3,500,000 $ 3,700,000    
Finite-Lived Intangible Asset, Useful Life 3 years      
Amortization of Deferred Charges (in Dollars) 300,000 500,000 700,000  
Franchise Extension Period 25 years      
Deferred Revenue, Period Increase (Decrease) (in Dollars) 500,000 1,500,000 4,300,000  
Changes in Net Income Relating to Deferred Revenue Liability Adjustment (in Dollars) 500,000 900,000 2,600,000  
Advertising Expense (in Dollars) 23,000,000 19,300,000 18,500,000  
Allocated Share-based Compensation Expense (in Dollars) 3,600,000 4,600,000 4,800,000  
Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized (in Dollars) 4,300,000      
Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized, Period for Recognition 1 year 6 months      
Ridemakerz [Member] | Scenario, Forecast [Member]
        
Equity Method Investment, Ownership Percentage 28.00%      
Ridemakerz [Member]
        
Equity Method Investment, Ownership Percentage 21.00%      
Equity Method Investments (in Dollars)       0
Business Acquisition, Equity Interest Issued or Issuable, Number of Shares (in Shares) 1.25      
Other than Temporary Impairment Losses, Investments (in Dollars) $ 500,000 $ 0 $ 0  
Leasehold Improvements [Member]
        
Property, Plant and Equipment, Useful Life 10 years      
Furniture and Fixtures and Computer Equipment [Member] | Minimum [Member]
        
Property, Plant and Equipment, Useful Life 3 years      
Furniture and Fixtures and Computer Equipment [Member] | Maximum [Member]
        
Property, Plant and Equipment, Useful Life 7 years      
Minimum [Member] | Computer Software, Intangible Asset [Member]
        
Finite-Lived Intangible Asset, Useful Life 3 years      
Minimum [Member] | Trademarks and intellectual property [Member]
        
Finite-Lived Intangible Asset, Useful Life 1 year      
Maximum [Member] | Computer Software, Intangible Asset [Member]
        
Finite-Lived Intangible Asset, Useful Life 5 years      
Maximum [Member] | Trademarks and intellectual property [Member]
        
Finite-Lived Intangible Asset, Useful Life 3 years