Note 9 - Segment Reporting - Operations Information by Reporting Segment (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 26, 2022	Mar. 27, 2021	Mar. 26, 2022	Mar. 27, 2021	Sep. 25, 2021
Sales	$ 281,513	$ 256,178	$ 600,003	$ 497,175
Depreciation and amortization	12,540	13,148	25,051	26,096
Operating income	4,088	7,230	18,933	7,808
Capital expenditures	19,206	9,153	35,306	18,829
Assets	1,123,328	1,064,915	1,123,328	1,064,915	$ 1,122,219
Food Service [Member]
Sales	176,340	169,324	388,072	329,749
Depreciation and amortization	6,670	7,116	13,339	13,902
Operating income	536	6,055	9,537	12,235
Capital expenditures	13,851	7,246	24,084	15,532
Assets	799,710	760,557	799,710	760,557
Retail Supermarket [Member]
Sales	40,757	43,906	83,452	83,000
Depreciation and amortization	386	384	752	770
Operating income	1,091	6,364	6,075	11,087
Capital expenditures	1,094	80	3,623	101
Assets	33,206	33,395	33,206	33,395
Frozen Beverages [Member]
Sales	64,416	42,948	128,479	84,426
Depreciation and amortization	5,484	5,648	10,960	11,424
Operating income	2,461	(5,189)	3,321	(15,514)
Capital expenditures	4,261	1,827	7,599	3,196
Assets	290,412	270,963	290,412	270,963
Soft Pretzels [Member] | Food Service [Member]
Sales	43,261	36,776	93,682	69,463
Soft Pretzels [Member] | Retail Supermarket [Member]
Sales	15,752	15,789	31,946	29,677
Frozen Juices and Ices [Member] | Food Service [Member]
Sales	7,305	10,590	15,762	16,885
Frozen Juices and Ices [Member] | Retail Supermarket [Member]
Sales	18,919	19,386	36,721	34,702
Churros [Member] | Food Service [Member]
Sales	17,447	14,720	36,936	26,262
Handhelds [Member] | Food Service [Member]
Sales	20,506	19,992	39,001	37,603
Handhelds [Member] | Retail Supermarket [Member]
Sales	1,069	2,243	2,345	5,023
Bakery [Member] | Food Service [Member]
Sales	83,967	82,910	191,798	171,874
Other Products [Member] | Food Service [Member]
Sales	3,854	4,336	10,893	7,662
Other Products [Member] | Retail Supermarket [Member]
Sales	56	601	104	1,126
Other Products [Member] | Frozen Beverages [Member]
Sales	509	538	951	776
Biscuits [Member] | Retail Supermarket [Member]
Sales	5,687	6,495	13,958	14,155
Coupon Redemtion [Member] | Retail Supermarket [Member]
Sales	(726)	(608)	(1,622)	(1,683)
Beverage [Member] | Frozen Beverages [Member]
Sales	35,365	18,529	69,128	34,384
Repair and Maintenance Service [Member] | Frozen Beverages [Member]
Sales	21,000	18,218	43,011	37,114
Machine Sales [Member] | Frozen Beverages [Member]
Sales	$ 7,542	$ 5,663	$ 15,389	$ 12,152