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Goodwill and Intangible Assets - Narrative (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
May 31, 2020 | May 26, 2019 | May 27, 2018
Indefinite-lived Intangible Assets [Line Items] |  |  |
Goodwill impairment loss | $ 7,860 | $ 0 |
Goodwill | 69,386 | 76,742 | $ 54,510
Amortization expense related to finite-lived intangible assets | 2,000 | 1,500 | $ 1,000
Amortization expense, next year | 1,800 |  |
Amortization expense, year two | 1,800 |  |
Amortization expense, year three | 1,800 |  |
Amortization expense, year four | 1,800 |  |
Amortization expense, year five | 1,800 |  |
O Olive & Vinegar |  |  |
Indefinite-lived Intangible Assets [Line Items] |  |  |
Goodwill impairment loss | 5,200 |  |
Yucatan Foods, LP |  |  |
Indefinite-lived Intangible Assets [Line Items] |  |  |
Goodwill impairment loss | 2,700 |  |
Trademarks/tradenames |  |  |
Indefinite-lived Intangible Assets [Line Items] |  |  |
Impairment of intangible assets | 872 | $ 872 |
Trademarks/tradenames | O Olive & Vinegar |  |  |
Indefinite-lived Intangible Assets [Line Items] |  |  |
Impairment of intangible assets | 1,100 |  |
Trademarks/tradenames | Yucatan Foods, LP |  |  |
Indefinite-lived Intangible Assets [Line Items] |  |  |
Impairment of intangible assets | 3,500 |  |
Customer relationships | O Olive & Vinegar |  |  |
Indefinite-lived Intangible Assets [Line Items] |  |  |
Impairment of intangible assets | 500 |  |
Lifecore |  |  |
Indefinite-lived Intangible Assets [Line Items] |  |  |
Goodwill | 13,900 |  |
Eat Smart |  |  |
Indefinite-lived Intangible Assets [Line Items] |  |  |
Goodwill | 35,500 |  |
Yucatan Foods, LP |  |  |
Indefinite-lived Intangible Assets [Line Items] |  |  |
Goodwill impairment loss | 2,700 |  |
Goodwill | 20,000 |  |
O Olive & Vinegar |  |  |
Indefinite-lived Intangible Assets [Line Items] |  |  |
Goodwill impairment loss | $ 5,200 |  |

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