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Note 7 - Goodwill and Other Identifiable Intangible Assets (Details Textual) - USD ($) $ in Millions | 3 Months Ended | 12 Months Ended
--- | --- | ---
Aug. 30, 2020 | Aug. 25, 2019 | May 29, 2022 | May 30, 2021 | May 31, 2020
Fair Value Measurements, Discounted Cash Flow, Period (Year) | 5 years |  |  |  |
Fair Value Measurement, Inputs, Terminal Growth Rate | 1.00% |  |  |  |
Amortization of Intangible Assets |  |  | $ 59.3 | $ 59.7 | $ 59.8
Sides Components And Enhancers Reporting Unit [Member] |  |  |  |  |
Fair Value Measurement, Inputs, Discount Rate | 6.50% |  |  |  |
Refrigerated And Frozen [Member] |  |  |  |  |
Impairment of Intangible Assets, Indefinite-Lived (Excluding Goodwill) |  |  | 103.9 | 76.9 | 110.8
Refrigerated And Frozen [Member] | Sides Components And Enhancers Reporting Unit [Member] |  |  |  |  |
Reporting Unit, Percentage of Fair Value in Excess of Carrying Amount | 20.00% |  |  |  |
Grocery Snacks and Refrigerated Frozen [Member] | Trademarks and Trade Names [Member] |  |  |  |  |
Impairment of Intangible Assets, Indefinite-Lived (Excluding Goodwill) |  | $ 19.3 | $ 209.0 | $ 90.9 | $ 146.2

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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 -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=126954810&loc=d3e3602-108585 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(2) -URI https://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 45 -Paragraph 2 -URI https://asc.fasb.org/extlink&oid=6388964&loc=d3e16225-109274 + Details
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- Definition Amount of impairment loss resulting from write-down of assets, excluding financial assets and goodwill, lacking physical substance and having a projected indefinite period of benefit to fair value. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 3 -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=66006027&loc=d3e16373-109275 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=126954810&loc=d3e3602-108585 + Details
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