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Note 10 (Detail) (USD $)
 3 Months Ended
Dec. 29, 2012
Dec. 24, 2011
Number of Reportable Segments 3  
Acquired Indefinite-lived Intangible Asset, Amount $ 0  
Amortization of Intangible Assets 1,119,000 1,132,000
Finite-Lived Intangible Assets, Amortization Expense, Next Twelve Months 4,500,000  
Finite-Lived Intangible Assets, Amortization Expense, Year Two 4,400,000  
Finite-Lived Intangible Assets, Amortization Expense, Year Three 4,400,000  
Finite-Lived Intangible Assets, Amortization Expense, Year Four 4,200,000  
Finite-Lived Intangible Assets, Amortization Expense, Year Five 1,700,000  
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life 10 years 36 days  
Goodwill, Period Increase (Decrease) $ 0  
Minimum [Member]
    
Finite-Lived Intangible Asset, Useful Life 3 years  
Maximum [Member]
    
Finite-Lived Intangible Asset, Useful Life 20 years