Note 10 (Details Textual)	3 Months Ended			6 Months Ended
	Mar. 28, 2020 USD ($)	Dec. 28, 2019 USD ($)	Mar. 30, 2019 USD ($)	Mar. 28, 2020 USD ($)	Mar. 30, 2019 USD ($)
Number of Reportable Segments				3
Amortization of Intangible Assets, Total	$ 833,000		$ 831,000	$ 1,676,000	$ 1,686,000
Finite-Lived Intangible Assets, Amortization Expense, Remainder of Fiscal Year	3,100,000			3,100,000
Finite-Lived Intangible Assets, Amortization Expense, Year Two	2,500,000			2,500,000
Finite-Lived Intangible Assets, Amortization Expense, Year Three	2,300,000			2,300,000
Finite-Lived Intangible Assets, Amortization Expense, Year Four	2,300,000			2,300,000
Finite-Lived Intangible Assets, Amortization Expense, Year Five	2,000,000			$ 2,000,000
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life (Year)				10 years 8 months 12 days
Minimum [Member]
Finite-Lived Intangible Asset, Useful Life (Year)				2 years
Maximum [Member]
Finite-Lived Intangible Asset, Useful Life (Year)				20 years
ICEE Distributor [Member]
Goodwill, Acquired During Period	3,549,000
BAMA ICEE [Member]
Indefinite-lived Intangible Assets Acquired	$ 6,933,000			$ 6,933,000
Frozen Beverages [Member] | ICEE Distributor [Member]
Indefinite-lived Intangible Assets Acquired		$ 21,769,000
Goodwill, Acquired During Period		$ 16,973,000