Note 9 - Operations Information by Reporting Segment (Details) - USD ($) $ in Thousands	3 Months Ended			6 Months Ended
	Mar. 28, 2020	Jun. 29, 2019	Mar. 30, 2019	Mar. 28, 2020	Mar. 30, 2019	Sep. 28, 2019
Sales	$ 272,042		$ 276,302	$ 554,939	$ 547,914
Depreciation and amortization	13,757		12,002	26,487	23,637
Operating income	10,982	$ 39,000	24,771	32,685	46,853
Capital expenditures	19,380		14,514	36,985	26,351
Assets	1,077,937		952,712	1,077,937	952,712	$ 1,019,339
Food Service [Member]
Sales	171,332		175,067	354,780	355,093
Depreciation and amortization	7,240		6,616	14,158	12,938
Operating income	7,951		19,182	25,985	36,879
Capital expenditures	10,331		8,403	18,734	14,681
Assets	740,318		699,028	740,318	699,028
Retail Supermarket [Member]
Sales	37,571		34,167	66,997	65,446
Depreciation and amortization	329		320	688	655
Operating income	4,337		3,039	6,554	5,250
Capital expenditures	275		581	1,235	1,133
Assets	31,636		30,034	31,636	30,034
Frozen Beverages [Member]
Sales	63,139		67,068	133,162	127,375
Depreciation and amortization	6,188		5,066	11,641	10,044
Operating income	(1,306)		2,550	146	4,724
Capital expenditures	8,774		5,530	17,016	10,537
Assets	305,983		223,650	305,983	223,650
Soft Pretzels [Member] | Food Service [Member]
Sales	45,660		49,812	95,601	98,803
Soft Pretzels [Member] | Retail Supermarket [Member]
Sales	12,332		10,829	22,158	21,015
Frozen Juices and Ices [Member] | Food Service [Member]
Sales	9,491		8,947	16,534	16,474
Frozen Juices and Ices [Member] | Retail Supermarket [Member]
Sales	15,864		14,668	25,957	25,664
Churros [Member] | Food Service [Member]
Sales	14,754		15,770	31,145	30,905
Handhelds [Member] | Food Service [Member]
Sales	7,447		7,987	14,636	16,789
Handhelds [Member] | Retail Supermarket [Member]
Sales	3,117		2,479	5,878	5,047
Bakery [Member] | Food Service [Member]
Sales	89,407		84,406	185,779	178,651
Other Products [Member] | Food Service [Member]
Sales	4,573		8,145	11,085	13,471
Other Products [Member] | Retail Supermarket [Member]
Sales	494		340	805	699
Other Products [Member] | Frozen Beverages [Member]
Sales	555		270	856	494
Biscuits [Member] | Retail Supermarket [Member]
Sales	6,630		6,358	13,608	14,222
Coupon Redemtion [Member] | Retail Supermarket [Member]
Sales	(866)		(507)	(1,409)	(1,201)
Beverage [Member] | Frozen Beverages [Member]
Sales	31,895		33,603	67,150	65,039
Repair and Maintenance Service [Member] | Frozen Beverages [Member]
Sales	21,779		20,034	44,265	39,777
Machine Sales [Member] | Frozen Beverages [Member]
Sales	$ 8,910		$ 13,161	$ 20,891	$ 22,065