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Note 2 - Acquired Intangible Assets (Details) - USD ($) $ in Millions			9 Months Ended
		Jun. 20, 2022	Jun. 25, 2022
Acquired Finite-Lived Intangible Assets, Weighted Average Useful Life (Year)			10 years 4 months 24 days
Customer Relationships [Member]
Acquired Finite-Lived Intangible Assets, Weighted Average Useful Life (Year)			10 years
Technology-Based Intangible Assets [Member]
Acquired Finite-Lived Intangible Assets, Weighted Average Useful Life (Year)			10 years
Franchise Rights [Member]
Acquired Finite-Lived Intangible Assets, Weighted Average Useful Life (Year)			10 years
Dippin’ Dots Holding, L.L.C. [Member]
Intangible assets	[1]	$ 120.4
Dippin’ Dots Holding, L.L.C. [Member] | Customer Relationships [Member]
Acquired Finite-Lived Intangible Assets, Weighted Average Useful Life (Year)		10 years
Acquired Finite-Lived Intangible Assets		$ 12.1
Dippin’ Dots Holding, L.L.C. [Member] | Technology-Based Intangible Assets [Member]
Acquired Finite-Lived Intangible Assets, Weighted Average Useful Life (Year)		10 years
Acquired Finite-Lived Intangible Assets		$ 22.9
Dippin’ Dots Holding, L.L.C. [Member] | Franchise Rights [Member]
Acquired Finite-Lived Intangible Assets, Weighted Average Useful Life (Year)		10 years
Acquired Finite-Lived Intangible Assets		$ 8.5
Trade Names [Member] | Dippin’ Dots Holding, L.L.C. [Member]
Acquired indefinite-Lived Intangible Assets		$ 76.9
[1] (1) Due to the limited time since the date of the acquisition, the purchase price allocation remains preliminary.

X

- Definition

Weighted average amortization period of finite-lived intangible assets acquired either individually or as part of a group of assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
-Paragraph 1
-Subparagraph (a)(3)
-URI https://asc.fasb.org/extlink&oid=66006027&loc=d3e16265-109275

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X

- Definition

Amount of intangible assets, excluding goodwill, acquired at the acquisition date.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (c)
-URI https://asc.fasb.org/extlink&oid=128092470&loc=d3e4845-128472

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X

- Definition

Amount of increase in assets, excluding financial assets, lacking physical substance with a definite life, from an acquisition.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
-Paragraph 1
-Subparagraph (a)(1)
-URI https://asc.fasb.org/extlink&oid=66006027&loc=d3e16265-109275

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- Definition

Amount of increase in assets, excluding financial assets and goodwill, lacking physical substance with an indefinite life, from an acquisition.

+ References

No definition available.

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