Document and Entity Information - shares	9 Months Ended
	Mar. 03, 2018	Apr. 10, 2018
Entity Registrant Name	RICHARDSON ELECTRONICS LTD/DE
Entity Central Index Key	0000355948
Document Type	10-Q
Trading Symbol	RELL
Document Period End Date	Mar. 03, 2018
Amendment Flag	false
Current Fiscal Year End Date	--06-02
Entity a Well-known Seasoned Issuer	No
Entity a Voluntary Filer	No
Entity's Reporting Status Current	Yes
Entity Filer Category	Accelerated Filer
Entity Common Stock, Shares Outstanding		10,796,094
Document Fiscal Period Focus	Q3
Document Fiscal Year Focus	2018
Class B Common [Member]
Entity Common Stock, Shares Outstanding		2,136,919