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Business Segment Reporting - Narrative (Details)	9 Months Ended
	Feb. 27, 2022 segment brand	Feb. 28, 2021
Revenue, Major Customer [Line Items]
Number of operating segments | segment	3
Number of natural food brands | brand	3
Sales Revenue, Net | Customer Concentration Risk | Customer One
Revenue, Major Customer [Line Items]
Concentration risk percentage	10.00%	10.00%
Sales Revenue, Net | Customer Concentration Risk | Customer One | Lifecore
Revenue, Major Customer [Line Items]
Concentration risk percentage	17.00%	20.00%
Sales Revenue, Net | Customer Concentration Risk | Customer Two
Revenue, Major Customer [Line Items]
Concentration risk percentage	10.00%	10.00%
Sales Revenue, Net | Customer Concentration Risk | Customer Two | Lifecore
Revenue, Major Customer [Line Items]
Concentration risk percentage	13.00%	12.00%
Accounts Receivable | Customer Concentration Risk | Customer One
Revenue, Major Customer [Line Items]
Concentration risk percentage	10.00%	10.00%
Accounts Receivable | Customer Concentration Risk | Customer One | Lifecore
Revenue, Major Customer [Line Items]
Concentration risk percentage	25.00%	19.00%
Accounts Receivable | Customer Concentration Risk | Customer Two
Revenue, Major Customer [Line Items]
Concentration risk percentage	10.00%	10.00%
Accounts Receivable | Customer Concentration Risk | Customer Two | Lifecore
Revenue, Major Customer [Line Items]
Concentration risk percentage	19.00%	12.00%

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Number Of Natural Food Brands

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For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

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Number of operating segments. An operating segment is a component of an enterprise: (a) that engages in business activities from which it may earn revenues and incur expenses (including revenues and expenses relating to transactions with other components of the same enterprise), (b) whose operating results are regularly reviewed by the enterprise's chief operating decision maker to make decisions about resources to be allocated to the segment and assess its performance, and (c) for which discrete financial information is available. An operating segment may engage in business activities for which it has yet to earn revenues, for example, start-up operations may be operating segments before earning revenues.

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