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Consolidated Statements of Changes in Stockholder's Equity (Parentheticals) (Common Stock [Member]) | 12 Months Ended
--- | ---
May 27, 2012 | May 30, 2010 | May 29, 2011
Common Stock [Member] |  |  |
Issuance of common stock, net of taxes paid by Landec on behalf of employees | $2.55 to $6.95 | $1.89 to $6.75 | $3.38 to $3.80

X
- Definition The range in stock price issued. + References No definition available. + Details
Name: | lndc_IssuanceOfCommonStockPriceRange
Namespace Prefix: | lndc_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration