XML 47 R1.htm IDEA: XBRL DOCUMENT v2.4.0.6
Document and Entity Information
 6 Months Ended
Dec. 01, 2012
Jan. 07, 2013
Common Stock
Jan. 07, 2013
Class B Common Stock
Document Information [Line Items]      
Document Type 10-Q    
Amendment Flag false    
Document Period End Date Dec. 01, 2012    
Document Fiscal Year Focus 2013    
Document Fiscal Period Focus Q2    
Trading Symbol RELL    
Entity Registrant Name RICHARDSON ELECTRONICS LTD/DE    
Entity Central Index Key 0000355948    
Current Fiscal Year End Date --06-01    
Entity Filer Category Accelerated Filer    
Entity Common Stock, Shares Outstanding   12,293,532 2,739,569