Note 12 - Goodwill and Intangible Assets - Intangible Assets by Reporting Segment (Details) - USD ($) $ in Thousands	Mar. 25, 2023	Sep. 24, 2022
Finite-lived intangible assets, accumulated amortization	$ 21,605	$ 19,758
Intangible assets	209,952	211,490
Food Service [Member]
Finite-lived intangible assets, accumulated amortization	12,940	10,729
Intangible assets	142,072	142,742
Retail Supermarket [Member]
Finite-lived intangible assets, accumulated amortization	6,871	7,342
Intangible assets	19,626	20,494
Frozen Beverages [Member]
Finite-lived intangible assets, accumulated amortization	1,794	1,687
Intangible assets	48,254	48,254
Trade Names [Member] | Food Service [Member]
Indefinite-lived intangible assets, gross	85,872	85,872
Trade Names [Member] | Retail Supermarket [Member]
Indefinite-lived intangible assets, gross	11,938	11,938
Finite-lived intangible assets, accumulated amortization	0	0
Trade Names [Member] | Frozen Beverages [Member]
Indefinite-lived intangible assets, gross	9,315	9,315
Noncompete Agreements [Member] | Food Service [Member]
Finite-lived intangible assets, gross	0	670
Finite-lived intangible assets, accumulated amortization	0	670
Franchise Rights [Member] | Food Service [Member]
Finite-lived intangible assets, gross	8,500	8,500
Finite-lived intangible assets, accumulated amortization	638	212
Customer Relationships [Member] | Food Service [Member]
Finite-lived intangible assets, gross	22,900	22,900
Finite-lived intangible assets, accumulated amortization	9,044	7,790
Customer Relationships [Member] | Retail Supermarket [Member]
Finite-lived intangible assets, gross	7,688	7,907
Finite-lived intangible assets, accumulated amortization	6,871	6,693
Customer Relationships [Member] | Frozen Beverages [Member]
Finite-lived intangible assets, gross	1,439	1,439
Finite-lived intangible assets, accumulated amortization	617	545
Developed Technology Rights [Member] | Food Service [Member]
Finite-lived intangible assets, gross	23,110	23,110
Finite-lived intangible assets, accumulated amortization	1,735	576
Food Service [Member] | License and Rights [Member]
Finite-lived intangible assets, gross	1,690	1,690
Finite-lived intangible assets, accumulated amortization	1,523	1,481
Finite-lived Trade Names [Member] | Retail Supermarket [Member]
Finite-lived intangible assets, gross	0	649
Finite-lived intangible assets, accumulated amortization	0	649
Distribution Rights, Indefinite-lived [Member] | Frozen Beverages [Member]
Indefinite-lived intangible assets, gross	36,100	36,100
Frozen Beverages [Member] | License and Rights [Member]
Finite-lived intangible assets, gross	1,400	1,400
Finite-lived intangible assets, accumulated amortization	$ 1,177	$ 1,142