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Note 2 - Acquired Intangible Assets (Details) - USD ($) $ in Millions |  | 9 Months Ended
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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.

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- 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 + Details
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- 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 + Details
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- 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 + Details
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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. + Details
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