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Note F - Goodwill and Intangible Assets (Details Textual)
12 Months Ended
Sep. 28, 2019
USD ($)
Sep. 29, 2018
USD ($)
Sep. 30, 2017
USD ($)
Number of Reportable Segments 3    
Impairment of Intangible Assets (Excluding Goodwill), Total $ 0 $ 0 $ 0
Intangible Assets Acquired     0
Amortization of Intangible Assets, Total 3,320,000 3,510,000 3,840,000
Finite-Lived Intangible Assets, Amortization Expense, Next Twelve Months 3,100,000    
Finite-Lived Intangible Assets, Amortization Expense, Year Two 2,500,000    
Finite-Lived Intangible Assets, Amortization Expense, Year Three 2,300,000    
Finite-Lived Intangible Assets, Amortization Expense, Year Four $ 2,000,000    
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life 10 years 7 months 6 days    
Goodwill, Impairment Loss $ 0 0 0
Goodwill, Acquired During Period 0 $ 0  
ICEE Distributor [Member] | Frozen Beverages [Member]      
Intangible Assets Acquired $ 480,000   6,957,000
Goodwill, Acquired During Period     1,236,000
Hill & Valley Inc. [Member] | Food Service [Member]      
Intangible Assets Acquired     15,760,000
Goodwill, Acquired During Period     14,175,000
Labriola Baking Company [Member] | Food Service [Member]      
Intangible Assets Acquired     576,000
Goodwill, Acquired During Period     $ 658,000
Minimum [Member]      
Finite-Lived Intangible Asset, Useful Life 2 years    
Maximum [Member]      
Finite-Lived Intangible Asset, Useful Life 20 years