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