XML 14 R1.htm IDEA: XBRL DOCUMENT v3.7.0.1
Document And Entity Information - USD ($)
$ in Thousands
 12 Months Ended
May 28, 2017
Jul. 24, 2017
Nov. 25, 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)   27,506,712  
Entity Public Float     $ 297,199
Document Type 10-K    
Document Period End Date May 28, 2017    
Document Fiscal Year Focus 2017    
Document Fiscal Period Focus FY    
Amendment Flag false