Cover Page - shares	6 Months Ended
	Nov. 29, 2020	Jan. 05, 2021
Cover [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Transition Report	false
Entity File Number	0-27446
Entity Registrant Name	LANDEC CORPORATION
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	94-3025618
Entity Address, Address Line One	2811 Airpark Drive
Entity Address, City or Town	Santa Maria,
Entity Address, State or Province	CA
Entity Address, Postal Zip Code	93455
City Area Code	650
Local Phone Number	306-1650
Title of 12(b) Security	Common stock, par value $0.001 per share
Trading Symbol	LNDC
Security Exchange Name	NASDAQ
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Central Index Key	0001005286
Current Fiscal Year End Date	--05-30
Entity Filer Category	Accelerated Filer
Entity Emerging Growth Company	false
Entity Small Business	false
Entity Common Stock, Shares Outstanding		29,323,153
Document Period End Date	Nov. 29, 2020
Document Fiscal Year Focus	2021
Document Fiscal Period Focus	Q2
Amendment Flag	false
Entity Shell Company	false