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Document And Entity Information - shares
 3 Months Ended
Aug. 30, 2015
Sep. 25, 2015
Entity Registrant Name LANDEC CORP \CA\  
Entity Central Index Key 0001005286  
Current Fiscal Year End Date --05-29  
Entity Filer Category Accelerated Filer  
Entity Current Reporting Status Yes  
Entity Voluntary Filers No  
Entity Well-known Seasoned Issuer No  
Entity Common Stock, Shares Outstanding (in shares)   27,015,022
Document Type 10-Q  
Document Period End Date Aug. 30, 2015  
Document Fiscal Year Focus 2016  
Document Fiscal Period Focus Q1  
Amendment Flag false