Note 11 - Segment Information - Operations Information by Reporting Segment (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 25, 2023	Mar. 26, 2022	Mar. 25, 2023	Mar. 26, 2022	Sep. 24, 2022
Sales	$ 337,854	$ 281,513	$ 689,197	$ 600,003
Depreciation and amortization	15,440	12,540	30,621	25,051
Operating income	10,193	4,088	19,521	18,933
Capital expenditures	18,214	19,206	49,124	35,306
Assets	1,224,957	1,123,328	1,224,957	1,123,328	$ 1,216,966
Food Service [Member]
Sales	218,281	176,340	456,578	388,072
Depreciation and amortization	9,597	6,670	19,055	13,339
Operating income	5,133	536	11,520	9,537
Capital expenditures	13,744	13,851	38,606	24,084
Assets	910,573	799,710	910,573	799,710
Food Service [Member] | Soft Pretzels [Member]
Sales	55,492	43,261	107,715	93,682
Food Service [Member] | Frozen Juices and Ices [Member]
Sales	26,607	7,305	48,372	15,762
Food Service [Member] | Churros [Member]
Sales	24,920	17,447	50,677	36,936
Food Service [Member] | Handhelds [Member]
Sales	20,309	20,506	43,881	39,001
Food Service [Member] | Bakery [Member]
Sales	85,300	83,967	194,248	191,798
Food Service [Member] | Other Products [Member]
Sales	5,653	3,854	11,685	10,893
Retail Supermarket [Member]
Sales	46,360	40,757	89,433	83,452
Depreciation and amortization	492	386	883	752
Operating income	487	1,091	1,598	6,075
Capital expenditures	105	1,094	1,479	3,623
Assets	12,162	33,206	12,162	33,206
Retail Supermarket [Member] | Soft Pretzels [Member]
Sales	16,013	15,752	30,498	31,946
Retail Supermarket [Member] | Frozen Juices and Ices [Member]
Sales	20,770	18,919	38,739	36,721
Retail Supermarket [Member] | Handhelds [Member]
Sales	4,099	1,069	6,991	2,345
Retail Supermarket [Member] | Other Products [Member]
Sales	(5)	56	(15)	104
Retail Supermarket [Member] | Biscuits [Member]
Sales	5,858	5,687	13,771	13,958
Retail Supermarket [Member] | Coupon Redemtion [Member]
Coupon redemption	(375)	(726)	(551)	(1,622)
Frozen Beverages [Member]
Sales	73,213	64,416	143,186	128,479
Depreciation and amortization	5,351	5,484	10,683	10,960
Operating income	4,573	2,461	6,403	3,321
Capital expenditures	4,365	4,261	9,039	7,599
Assets	302,222	290,412	302,222	290,412
Frozen Beverages [Member] | Other Products [Member]
Sales	577	509	1,053	951
Frozen Beverages [Member] | Beverage [Member]
Sales	41,799	35,365	80,458	69,128
Frozen Beverages [Member] | Repair and Maintenance Service [Member]
Sales	22,585	21,000	46,412	43,011
Frozen Beverages [Member] | Machine Sales [Member]
Sales	$ 8,252	$ 7,542	$ 15,263	$ 15,389