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Organization, Basis of Presentation, and Summary of Significant Accounting Policies - Disaggregation of Revenue (Details) - USD ($) $ in Thousands	12 Months Ended
	May 26, 2019	May 27, 2018	May 28, 2017
Segment Reporting Information [Line Items]
Product sales	$ 557,559	$ 524,227	$ 469,776
Curation Foods
Segment Reporting Information [Line Items]
Product sales	481,686	458,800	410,384
Lifecore
Segment Reporting Information [Line Items]
Product sales	75,873	65,427	59,392
Salads | Curation Foods
Segment Reporting Information [Line Items]
Product sales	190,239	188,104	152,467
Core vegetables | Curation Foods
Segment Reporting Information [Line Items]
Product sales	258,812	266,850	255,554
Emerging brands | Curation Foods
Segment Reporting Information [Line Items]
Product sales	32,635	3,846	2,363
Aseptic | Lifecore
Segment Reporting Information [Line Items]
Product sales	34,384	30,021	24,090
Fermentation | Lifecore
Segment Reporting Information [Line Items]
Product sales	21,434	21,068	24,187
Development services | Lifecore
Segment Reporting Information [Line Items]
Product sales	$ 20,055	$ 14,338	$ 11,115

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+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=109196051&loc=SL49130539-203045

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-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
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-URI http://asc.fasb.org/extlink&oid=109196051&loc=SL49130545-203045

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-URI http://asc.fasb.org/extlink&oid=109196051&loc=SL49130543-203045

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