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Document And Entity Information
3 Months Ended
Aug. 26, 2012
Sep. 21, 2012
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   25,714,484
Amendment Flag true  
Amendment Description We are filing this Amendment to (i) restate our previously reported financial statements for this period to change the previously reported amount of our investment in Windset Holdings 2010, Ltd. (“Windset”) and to make a corresponding increase in other income to reflect the higher fair market value of our investment ( see also “Item 1. Financial Statements – Note 2. Restatement of Previously Reported Consolidated Financial Statements” for discussion of significant changes), and (ii) to amend “Item 4. Controls and Procedures” to disclose certain matters identified in connection with the Company’s evaluation, under the supervision and with the participation of the Company’s management, of the effectiveness of its disclosure controls and procedures as defined in Rules 13a-15(e) and 15d-15(e) under the Securities Exchange Act of 1934, as amended.  
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 Aug. 26, 2012  
Document Fiscal Year Focus 2013  
Document Fiscal Period Focus Q1