v3.5.0.2
Document And Entity Information - shares
3 Months Ended
Aug. 28, 2016
Sep. 23, 2016
Document Information [Line Items]    
Entity Registrant Name LANDEC CORP \CA\  
Entity Central Index Key 0001005286  
Trading Symbol lndc  
Current Fiscal Year End Date --05-28  
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)   27,241,273
Document Type 10-Q  
Document Period End Date Aug. 28, 2016  
Document Fiscal Year Focus 2017  
Document Fiscal Period Focus Q1  
Amendment Flag false