Note 10 (Details Textual)	3 Months Ended		6 Months Ended		12 Months Ended
	Mar. 31, 2018 USD ($)	Mar. 25, 2017 USD ($)	Mar. 31, 2018 USD ($)	Mar. 25, 2017 USD ($)	Sep. 30, 2017 USD ($)
Number of Reportable Segments			3
Amortization of Intangible Assets, Total	$ 931,000	$ 1,021,000	$ 1,750,000	$ 2,129,000
Finite-Lived Intangible Assets, Amortization Expense, Remainder of Fiscal Year	3,500,000		3,500,000
Finite-Lived Intangible Assets, Amortization Expense, Year Two	3,400,000		3,400,000
Finite-Lived Intangible Assets, Amortization Expense, Year Three	3,000,000		3,000,000
Finite-Lived Intangible Assets, Amortization Expense, Year Four	2,400,000		2,400,000
Finite-Lived Intangible Assets, Amortization Expense, Year Five	$ 2,300,000		$ 2,300,000
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life			10 years 292 days
ICEE Distributor [Member] | Frozen Beverages [Member]
Intangible Assets Acquired					$ 6,957,000
Goodwill, Acquired During Period					1,236,000
Hill & Valley Inc. [Member] | Food Service [Member]
Intangible Assets Acquired					15,760,000
Goodwill, Acquired During Period					14,175,000
Labriola Baking Company [Member] | Food Service [Member]
Intangible Assets Acquired					576,000
Goodwill, Acquired During Period					$ 658,000
Minimum [Member]
Finite-Lived Intangible Asset, Useful Life			3 years
Maximum [Member]
Finite-Lived Intangible Asset, Useful Life			20 years