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Note F - Goodwill and Intangible Assets (Detail) (USD $)
 12 Months Ended
Sep. 29, 2012
Sep. 24, 2011
Sep. 25, 2010
Number of Reportable Segments 3    
Amortization of Intangible Assets $ 4,477,000 $ 4,811,000 $ 4,687,000
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, Impairment Loss 0 0 0
Food Service [Member] | Handhelds [Member]
      
Acquired Indefinite-lived Intangible Asset, Amount   676,000  
Food Service [Member] | Kim and Scott's [Member]
      
Acquired Indefinite-lived Intangible Asset, Amount 198,000    
Goodwill, Acquired During Period 4,985,000    
Retail Supermarket [Member] | Handhelds [Member]
      
Acquired Indefinite-lived Intangible Asset, Amount   856,000  
Retail Supermarket [Member] | Kim and Scott's [Member]
      
Acquired Indefinite-lived Intangible Asset, Amount 238,000    
Goodwill, Acquired During Period 1,844,000    
Retail Supermarket [Member]
      
Acquired Indefinite-lived Intangible Asset, Amount 500,000    
Minimum [Member]
      
Finite-Lived Intangible Asset, Useful Life 3 years    
Maximum [Member]
      
Finite-Lived Intangible Asset, Useful Life 20 years    
Kim and Scott's [Member]
      
Goodwill, Acquired During Period $ 6,829,000