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Note F - Goodwill and Intangible Assets (Details Textual)
3 Months Ended 12 Months Ended
Sep. 25, 2021
USD ($)
Sep. 25, 2021
USD ($)
Sep. 26, 2020
USD ($)
Sep. 28, 2019
USD ($)
Number of Reportable Segments   3    
Impairment of Intangible Assets, Indefinite-lived (Excluding Goodwill)   $ 1,273,000 $ 0 $ 0
Intangible Assets Acquired   0    
Amortization of Intangible Assets, Total   2,610,000 3,202,000 3,320,000
Finite-Lived Intangible Asset, Expected Amortization, Year One $ 2,300,000 2,300,000    
Finite-Lived Intangible Asset, Expected Amortization, Year Three 2,000,000 2,000,000    
Finite-Lived Intangible Asset, Expected Amortization, Year Four 1,400,000 $ 1,400,000    
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life (Year)   10 years 10 months 24 days    
Goodwill, Impairment Loss   $ 0    
Goodwill, Acquired During Period   0    
Finite-Lived Intangible Asset, Expected Amortization, Year Two 2,300,000 2,300,000    
Finite-Lived Intangible Asset, Expected Amortization, Year Five 1,400,000 $ 1,400,000    
Frozen Beverages [Member]        
Intangible Assets Acquired       480,000
Frozen Beverages [Member] | ICEE Distributor [Member]        
Intangible Assets Acquired     22,969,000  
Goodwill, Acquired During Period     15,773,000  
Frozen Beverages [Member] | BAMA ICEE [Member]        
Intangible Assets Acquired     $ 6,933,000  
Goodwill, Acquired During Period       $ 3,549,000
Trade Names [Member]        
Impairment of Intangible Assets, Indefinite-lived (Excluding Goodwill) 1,273,000      
Trade Names [Member] | Food Service [Member]        
Impairment of Intangible Assets, Indefinite-lived (Excluding Goodwill) 812,000      
Trade Names [Member] | Retail Supermarket [Member]        
Impairment of Intangible Assets, Indefinite-lived (Excluding Goodwill) $ 461,000      
Minimum [Member]        
Finite-Lived Intangible Asset, Useful Life (Year)   2 years    
Maximum [Member]        
Finite-Lived Intangible Asset, Useful Life (Year)   20 years