Note 10 - Intangible Assets By Reporting Segment (Details) - USD ($) $ in Thousands	Mar. 25, 2017	Sep. 24, 2016
Accumulated amortization	$ 37,863	$ 35,734
Intangible assets	94,373	77,553
Food Service [Member]
Accumulated amortization	34,579	32,962
Intangible assets	68,273	51,453
Food Service [Member] | Noncompete Agreements [Member]
Amortized intangible assets	852	122
Accumulated amortization	147	93
Food Service [Member] | Customer Relationships [Member]
Amortized intangible assets	49,491	35,491
Accumulated amortization	33,415	31,895
Food Service [Member] | License and Rights [Member]
Amortized intangible assets	1,690	1,690
Accumulated amortization	1,017	974
Retail Supermarket [Member]
Accumulated amortization	2,487	2,021
Intangible assets	15,185	15,185
Retail Supermarket [Member] | Customer Relationships [Member]
Amortized intangible assets	7,979	7,979
Accumulated amortization	2,422	2,021
Retail Supermarket [Member] | Finite-lived Trade Names [Member]
Amortized intangible assets	649
Accumulated amortization	65
Frozen Beverages [Member]
Accumulated amortization	797	751
Intangible assets	10,915	10,915
Frozen Beverages [Member] | Customer Relationships [Member]
Amortized intangible assets	200	200
Accumulated amortization	38	28
Frozen Beverages [Member] | License and Rights [Member]
Amortized intangible assets	1,400	1,400
Accumulated amortization	759	723
Trade Names [Member] | Food Service [Member]
Indefinite lived intangible assets	16,240	14,150
Trade Names [Member] | Retail Supermarket [Member]
Indefinite lived intangible assets	6,557	7,206
Trade Names [Member] | Frozen Beverages [Member]
Indefinite lived intangible assets	$ 9,315	$ 9,315