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Organization, Basis of Presentation, and Summary of Significant Accounting Policies - Narrative (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | ---
Aug. 25, 2019 | May 27, 2018 | May 31, 2020 | May 26, 2019 | May 27, 2018 | Nov. 25, 2019 | Jul. 15, 2014
Related Party Transaction [Line Items] |  |  |  |  |  |  |
Cash flow hedge loss to be reclassified within twelve months |  |  | $ 2,000 |  |  |  |
Restricted cash |  | $ 325 | 193 | $ 385 | $ 325 |  |
Advertising expense |  |  | 1,800 | 1,300 | 1,400 |  |
Notes or advances outstanding |  |  | 0 | 2,000 |  |  |
Goodwill impairment loss |  |  | $ 7,860 | 0 |  |  |
Business interruption insurance recovery | $ 3,000 |  |  |  |  |  |
Amount participants are allowed to contribute of their salaries |  |  | 50.00% |  |  |  |
Company contribution to employee contribution plan |  |  | $ 2,200 | 1,800 | 1,800 |  |
Lease liability, operating |  |  | 27,240 |  |  |  |
Operating lease, right-of-use asset |  |  | $ 25,321 | 0 |  |  |
ASU 2016-02 |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |
Lease liability, operating |  |  |  | 31,100 |  |  |
Operating lease, right-of-use asset |  |  |  | 30,000 |  |  |
ASU 2016-02 | Cumulative Effect Adjustment |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |
Stockholders' equity |  |  |  | 300 |  |  |
ASU 2019-12 | Cumulative Effect Adjustment |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |
Stockholders' equity |  |  |  |  |  | $ 400 |
Apio Cooling, LP |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |
Payments to acquire additional interest in subsidiaries |  | 4,700 |  |  |  |  |
Decrease in additional paid-in-capital |  | 2,600 |  |  |  |  |
Amount in Apio Cooling's non-controlling interest account |  | $ 1,500 |  |  | 1,500 |  |
Windset |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |
Ownership percentage |  |  | 26.90% |  |  |  |
Software Development | Maximum |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |
Useful life of property and equipment |  |  | 7 years |  |  |  |
Software Development | Minimum |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |
Useful life of property and equipment |  |  | 3 years |  |  |  |
First Three Percent Match |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |
Company match of contribution plan, percent |  |  | 100.00% |  |  |  |
Percent of employees' gross pay |  |  | 3.00% |  |  |  |
Next Two Percent Match |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |
Company match of contribution plan, percent |  |  | 50.00% |  |  |  |
Percent of employees' gross pay |  |  | 2.00% |  |  |  |
Windset |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |
Accounts receivable balance from related parties |  |  | $ 500 | 500 |  |  |
Windset | Cost of sales |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |
Expenses from related parties |  |  | 600 |  |  |  |
Revenue from related parties |  |  |  | $ 600 | $ 600 |  |
O Olive & Vinegar |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |
Goodwill impairment loss |  |  | 5,200 |  |  |  |
Impairment of property and equipment |  |  | 1,300 |  |  |  |
O Olive & Vinegar | Customer relationships |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |
Impairment of finite-lived intangible assets |  |  | 500 |  |  |  |
Yucatan Foods, LP |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |
Goodwill impairment loss |  |  | $ 2,700 |  |  |  |
Revenue | Customer Concentration Risk | Top 5 Customers |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |
Concentration risk |  |  | 48.00% | 43.00% |  |  |
Revenue | Customer Concentration Risk | Wal-mart | Curation Foods |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |
Concentration risk |  |  | 18.00% | 16.00% |  |  |
Revenue | Customer Concentration Risk | Costco | Curation Foods |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |
Concentration risk |  |  | 15.00% | 14.00% |  |  |
Accounts Receivable | Customer Concentration Risk | Wal-mart |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |
Concentration risk |  |  | 13.00% | 13.00% |  |  |
Accounts Receivable | Customer Concentration Risk | Costco |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |
Concentration risk |  |  | 7.00% | 8.00% |  |  |
Accounts Receivable | Customer Concentration Risk | Largest Customer | Lifecore |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |
Concentration risk |  |  | 12.00% | 13.00% |  |  |
Apio Cooling, LP |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |
Non-controlling voting interest acquired |  | 40.00% |  |  | 40.00% |  |
Windset |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |
Investment ownership percentage |  |  | 26.90% |  |  |  | 26.90%
Trademarks | Eat Smart |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |
Restructuring costs and impairment of assets charges |  |  |  | $ 2,000 |  |  |
Trademarks | O Olive & Vinegar |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |
Restructuring costs and impairment of assets charges |  |  | $ 1,100 |  |  |  |
Trademarks | Yucatan Foods, LP |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |
Restructuring costs and impairment of assets charges |  |  | $ 3,500 |  |  |  |

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