XML 17 R1.htm IDEA: XBRL DOCUMENT v3.22.2
Document and Entity Information - USD ($)
$ in Millions
 12 Months Ended
May 28, 2022
Jul. 25, 2022
Nov. 27, 2021
Document Information [Line Items]      
Entity Registrant Name RICHARDSON ELECTRONICS, LTD.    
Entity Central Index Key 0000355948    
Document Type 10-K    
Trading Symbol RELL    
Document Period End Date May 28, 2022    
Amendment Flag false    
Current Fiscal Year End Date --05-28    
Entity a Well-known Seasoned Issuer No    
Entity a Voluntary Filer No    
Entity's Reporting Status Current Yes    
Entity Emerging Growth Company false    
Entity Shell Company false    
Entity Small Business true    
Entity Filer Category Accelerated Filer    
Entity Public Float     $ 122.2
Document Fiscal Period Focus FY    
Document Fiscal Year Focus 2022    
Entity File Number 0-12906    
Entity Tax Identification Number 36-2096643    
Entity Address, Address Line One 40W267 Keslinger Road    
Entity Address, Address Line Two P.O. Box 393    
Entity Address, City or Town LaFox    
Entity Address, State or Province IL    
Entity Address, Postal Zip Code 60147-0393    
City Area Code 630    
Local Phone Number 208-2200    
Entity Incorporation, State or Country Code DE    
Document Annual Report true    
Document Transition Report false    
Entity Interactive Data Current Yes    
Title of 12(b) Security Common stock, $0.05 Par Value    
Security Exchange Name NASDAQ    
ICFR Auditor Attestation Flag true    
Auditor Firm ID 243    
Auditor Name BDO USA, LLP    
Auditor Location Chicago, IL, USA    
Documents Incorporated by Reference

Portions of the registrant’s Proxy Statement for the Annual Meeting of Stockholders scheduled to be held October 4, 2022, which will be filed pursuant to Regulation 14A, are incorporated by reference in Part III of this report. Except as specifically incorporated herein by reference, the abovementioned Proxy Statement is not deemed filed as part of this report.

    
Common Stock      
Document Information [Line Items]      
Entity Common Stock, Shares Outstanding   11,697,419  
Common Class B      
Document Information [Line Items]      
Entity Common Stock, Shares Outstanding   2,053,263