Consolidated Statements of Changes in Stockholder's Equity (Parentheticals) (Common Stock [Member])	12 Months Ended
	May 27, 2012	May 30, 2010	May 29, 2011
Common Stock [Member]
Issuance of common stock, net of taxes paid by Landec on behalf of employees	$2.55 to $6.95	$1.89 to $6.75	$3.38 to $3.80