Organization, Basis of Presentation, and Summary of Significant Accounting Policies - Disaggregation of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Nov. 29, 2020	Nov. 24, 2019	Nov. 29, 2020	Nov. 24, 2019
Segment Reporting Information [Line Items]
Net sales	$ 130,904	$ 142,593	$ 266,547	$ 281,307
Curation Foods
Segment Reporting Information [Line Items]
Net sales	107,685	119,751	221,523	246,424
Curation Foods | Fresh packaged salads and vegetables
Segment Reporting Information [Line Items]
Net sales	92,423	104,912	188,601	214,743
Curation Foods | Avocado products
Segment Reporting Information [Line Items]
Net sales	14,713	14,021	31,730	30,221
Curation Foods | Technology
Segment Reporting Information [Line Items]
Net sales	549	818	1,192	1,460
Lifecore
Segment Reporting Information [Line Items]
Net sales	23,219	22,842	45,024	34,883
Lifecore | Contact development and manufacturing organization
Segment Reporting Information [Line Items]
Net sales	18,259	17,811	34,747	29,114
Lifecore | Fermentation
Segment Reporting Information [Line Items]
Net sales	$ 4,960	$ 5,031	$ 10,277	$ 5,769