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Note F - Goodwill and Intangible Assets (Details Textual) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Sep. 30, 2023 | Sep. 30, 2023 | Sep. 24, 2022 | Sep. 25, 2021
Impairment of Intangible Assets, Indefinite-Lived (Excluding Goodwill) |  | $ 1,678 | $ 1,010 | $ 1,273
Amortization of Intangible Assets |  | 6,500 | 3,500 | 2,600
Finite-Lived Intangible Asset, Expected Amortization, Year One | $ 6,200 | 6,200 |  |
Finite-Lived Intangible Asset, Expected Amortization, Year Two | 5,600 | 5,600 |  |
Finite-Lived Intangible Asset, Expected Amortization, Year Three | 4,600 | 4,600 |  |
Finite-Lived Intangible Asset, Expected Amortization, Year Four | 4,200 | $ 4,200 |  |
Acquired Finite-Lived Intangible Assets, Weighted Average Useful Life |  | 10 years 4 months 24 days |  |
Goodwill, Impairment Loss |  | $ 0 | 0 | 0
Goodwill, Acquired During Period |  |  |  | $ 0
Technology-Based Intangible Assets [Member] |  |  |  |
Acquired Finite-Lived Intangible Assets, Weighted Average Useful Life |  | 10 years |  |
Customer Relationships [Member] |  |  |  |
Acquired Finite-Lived Intangible Assets, Weighted Average Useful Life |  | 10 years |  |
License and Rights [Member] |  |  |  |
Acquired Finite-Lived Intangible Assets, Weighted Average Useful Life |  | 20 years |  |
Franchise Rights [Member] |  |  |  |
Acquired Finite-Lived Intangible Assets, Weighted Average Useful Life |  | 10 years |  |
Dippin’ Dots Holding, L.L.C. [Member] |  |  |  |
Intangible Assets Acquired |  | $ 118,200 |  |
Goodwill, Acquired During Period |  | $ 700 | $ 62,600 |
Dippin’ Dots Holding, L.L.C. [Member] | Customer Relationships [Member] |  |  |  |
Acquired Finite-Lived Intangible Assets, Weighted Average Useful Life |  |  | 10 years |
Dippin’ Dots Holding, L.L.C. [Member] | Franchise Rights [Member] |  |  |  |
Acquired Finite-Lived Intangible Assets, Weighted Average Useful Life |  |  | 10 years |
Trade Names [Member] |  |  |  |
Impairment of Intangible Assets, Indefinite-Lived (Excluding Goodwill) | 1,700 |  |  |
Trade Names [Member] | Food Service [Member] |  |  |  |
Impairment of Intangible Assets, Indefinite-Lived (Excluding Goodwill) | $ 1,700 |  |  |
Minimum [Member] |  |  |  |
Finite-Lived Intangible Asset, Useful Life (Year) | 2 years | 2 years |  |
Maximum [Member] |  |  |  |
Finite-Lived Intangible Asset, Useful Life (Year) | 20 years | 20 years |  |

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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 -Topic 350 -SubTopic 30 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (a)(3) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482665/350-30-50-1 + Details
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- Definition The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 45 -Paragraph 28 -Subparagraph (b) -SubTopic 10 -Topic 230 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482740/230-10-45-28 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 45 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482686/350-30-45-2 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(2) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482665/350-30-50-2 + Details
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- Definition Amount of amortization for assets, excluding financial assets and goodwill, lacking physical substance with finite life expected to be recognized in next fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 350 -SubTopic 30 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (a)(3) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482665/350-30-50-2 + Details
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- Definition Amount of amortization for assets, excluding financial assets and goodwill, lacking physical substance with finite life expected to be recognized in fourth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 350 -SubTopic 30 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (a)(3) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482665/350-30-50-2 + Details
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- Definition Amount of amortization for assets, excluding financial assets and goodwill, lacking physical substance with finite life expected to be recognized in third fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 350 -SubTopic 30 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (a)(3) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482665/350-30-50-2 + Details
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- Definition Amount of amortization for assets, excluding financial assets and goodwill, lacking physical substance with finite life expected to be recognized in second fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 350 -SubTopic 30 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (a)(3) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482665/350-30-50-2 + Details
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- Definition Amount of increase in asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized resulting from a business combination. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 350 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 24 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482548/350-20-55-24 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 350 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482573/350-20-50-1 + Details
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