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Note 10 - Intangible Assets By Reporting Segment (Details) - USD ($)
$ in Thousands
Dec. 24, 2016
Sep. 24, 2016
Finite lived intangible assets, accumulated amortization $ 51,571 $ 50,463
Finite lived intangible assets, gross carrying amount 92,282 92,282
Food Service [Member]    
Finite lived intangible assets, accumulated amortization 41,539 40,654
Finite lived intangible assets, gross carrying amount 59,145 59,145
Food Service [Member] | Noncompete Agreements [Member]    
Finite lived intangible assets, gross carrying amount 592 592
Finite lived intangible assets, accumulated amortization 569 563
Food Service [Member] | Customer Relationships [Member]    
Finite lived intangible assets, gross carrying amount 40,797 40,797
Finite lived intangible assets, accumulated amortization 38,058 37,201
Food Service [Member] | License and Rights [Member]    
Finite lived intangible assets, gross carrying amount 3,606 3,606
Finite lived intangible assets, accumulated amortization 2,912 2,890
Retail Supermarket [Member]    
Finite lived intangible assets, accumulated amortization 2,381 2,181
Finite lived intangible assets, gross carrying amount 15,345 15,345
Retail Supermarket [Member] | Noncompete Agreements [Member]    
Finite lived intangible assets, gross carrying amount 160 160
Finite lived intangible assets, accumulated amortization 160 160
Retail Supermarket [Member] | Customer Relationships [Member]    
Finite lived intangible assets, gross carrying amount 7,979 7,979
Finite lived intangible assets, accumulated amortization 2,221 2,021
Frozen Beverages [Member]    
Finite lived intangible assets, accumulated amortization 7,651 7,628
Finite lived intangible assets, gross carrying amount 17,792 17,792
Frozen Beverages [Member] | Noncompete Agreements [Member]    
Finite lived intangible assets, gross carrying amount 198 198
Finite lived intangible assets, accumulated amortization 198 198
Frozen Beverages [Member] | Customer Relationships [Member]    
Finite lived intangible assets, gross carrying amount 6,678 6,678
Finite lived intangible assets, accumulated amortization 6,511 6,506
Frozen Beverages [Member] | License and Rights [Member]    
Finite lived intangible assets, gross carrying amount 1,601 1,601
Finite lived intangible assets, accumulated amortization 942 924
Trade Names [Member] | Food Service [Member]    
Indefinite lived intangible assets 14,150 14,150
Trade Names [Member] | Retail Supermarket [Member]    
Indefinite lived intangible assets 7,206 7,206
Trade Names [Member] | Frozen Beverages [Member]    
Indefinite lived intangible assets $ 9,315 $ 9,315