Document And Entity Information
9 Months Ended
Feb. 24, 2013
Mar. 22, 2013
Document and Entity Information [Abstract]    
Entity Registrant Name LANDEC CORP \CA\  
Document Type 10-Q  
Current Fiscal Year End Date --05-26  
Entity Common Stock, Shares Outstanding   25,929,412
Amendment Flag false  
Entity Central Index Key 0001005286  
Entity Current Reporting Status Yes  
Entity Voluntary Filers No  
Entity Filer Category Accelerated Filer  
Entity Well-known Seasoned Issuer No  
Document Period End Date Feb. 24, 2013  
Document Fiscal Year Focus 2013  
Document Fiscal Period Focus Q3