Document and Entity Information	9 Months Ended
	Mar. 01, 2014	Apr. 07, 2014 Common Stock	Apr. 07, 2014 Class B Common Stock
Document Information [Line Items]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Mar. 01, 2014
Document Fiscal Year Focus	2014
Document Fiscal Period Focus	Q3
Trading Symbol	RELL
Entity Registrant Name	RICHARDSON ELECTRONICS LTD/DE
Entity Central Index Key	0000355948
Current Fiscal Year End Date	--05-30
Entity Filer Category	Accelerated Filer
Entity Common Stock, Shares Outstanding		11,834,689	2,190,644