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Acquisitions - Narrative (Details)			3 Months Ended		6 Months Ended
	Dec. 01, 2018 USD ($) tranche intangible_asset shares	Mar. 01, 2017 USD ($)	Nov. 24, 2019 USD ($)	May 26, 2019 USD ($)	Nov. 24, 2019 USD ($)	Nov. 25, 2018 USD ($)
Business Acquisition [Line Items]
Deferred income tax				$ 1,700,000
Increase to goodwill				1,000,000
Indemnification provisions for environmental related items				700,000
Reversal of contingent consideration liability					$ 500,000	$ 900,000
Yucatan
Business Acquisition [Line Items]
Consideration paid	$ 74,966,000
Cash consideration	$ 59,898,000
Shares issued for acquisition (in shares) | shares	1,203,360
Stock consideration	$ 15,068,000
Number of tranches | tranche	2
Deferred income tax			$ 500,000
Increase to goodwill			500,000
Number of intangible assets in connection with Yucatan acquisition | intangible_asset	2
Percentage of goodwill expected to be deductible for income tax purposes	80.00%
Yucatan | Customer relationships
Business Acquisition [Line Items]
Customer relationships	$ 11,000,000		11,000,000		11,000,000
Estimated useful life	12 years
Yucatan | Trademarks/tradenames
Business Acquisition [Line Items]
Tradenames	$ 15,900,000		15,900,000		15,900,000
Yucatan | 3-Year Lock Up
Business Acquisition [Line Items]
Discount percentage	17.50%
Percentage of stock consideration released from lock-up	50.00%
Yucatan | 4-Year Lock Up
Business Acquisition [Line Items]
Discount percentage	20.00%
Percentage of stock consideration released from lock-up	50.00%
Yucatan | Common Stock
Business Acquisition [Line Items]
Stock consideration	$ 15,100,000
Yucatan | First 50% of the Stock Consideration | 3-Year Lock Up
Business Acquisition [Line Items]
Lock-up period	3 years
Yucatan | Second 50% of the Stock Consideration | 4-Year Lock Up
Business Acquisition [Line Items]
Lock-up period	4 years
O Olive & Vinegar
Business Acquisition [Line Items]
Cash consideration		$ 2,500,000
Potential earn out payment		$ 7,500,000
Cumulative EBITDA amount					6,000,000
Reversal of contingent consideration liability			500,000
Contingent consideration liability			0	$ 500,000	0
O Olive & Vinegar | Initial Potential Payment Limit
Business Acquisition [Line Items]
Potential earn out payment			4,600,000		4,600,000
O Olive & Vinegar | Additional Potential Payment Limit
Business Acquisition [Line Items]
Potential earn out payment			$ 2,900,000		$ 2,900,000
Period for earning EBITDA by previous owners					3 years

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