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Investment in Non-public Company (Details) - USD ($)				1 Months Ended	12 Months Ended
	Oct. 29, 2014	Jul. 15, 2014	Feb. 15, 2011	Oct. 29, 2014	May 31, 2020	May 26, 2019	May 27, 2018	Feb. 24, 2019
Investment Holdings [Line Items]
Dividend income					$ 1,125,000	$ 1,650,000	$ 1,650,000
Windset
Investment Holdings [Line Items]
Investment ownership percentage		26.90%			26.90%
Dividend income					$ 1,100,000	$ 1,700,000	1,700,000
Change in market value of company's investment					(4,200,000)
Windset | Curation Foods
Investment Holdings [Line Items]
Payments to acquire investments		$ 11,000,000.0
Liquidation value					20,100,000
Time frame to be paid after anniversary		90 days
Windset | Curation Foods | Senior A Preferred Stock
Investment Holdings [Line Items]
Liquidation value					15,000,000.0
Windset | Curation Foods | Junior Preferred Shares
Investment Holdings [Line Items]
Liquidation value					$ 5,100,000
Preferred stock investment, dividends declared								$ 0
Windset | Curation Foods | Senior B Preferred Stock
Investment Holdings [Line Items]
Investment in non-public company shares (in shares)	70,000			70,000		70,000
Payments to acquire investments	$ 7,000,000.0			$ 7,000,000.0
Dividend percentage rate				7.50%
Put option for preferred shares						$ 7,000,000.0
Windset | Curation Foods | Senior A Preferred Stock
Investment Holdings [Line Items]
Investment in non-public company shares (in shares)			150,000
Payments to acquire investments			$ 15,000,000.0
Windset | Curation Foods | Common Stock
Investment Holdings [Line Items]
Investment in non-public company shares (in shares)		68	201
Payments to acquire investments			$ 201
Windset | Curation Foods | Junior Preferred Shares
Investment Holdings [Line Items]
Investment in non-public company shares (in shares)		51,211
Senior A Preferred Stock
Investment Holdings [Line Items]
Dividend percentage rate		7.50%
Other Income | Windset
Investment Holdings [Line Items]
Change in market value of company's investment						$ 1,600,000	$ 2,900,000

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Change during the period in the market value of an investment in the company.

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The timeframe in which the dividends are to be paid after each anniversary of the execution of the Windset Purchase Agreement.

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The amount of shares in an Investment in a non-public company.

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