Document And Entity Information
3 Months Ended
Sep. 30, 2012
Oct. 31, 2012
Document and Entity Information [Abstract]    
Entity Registrant Name COLLECTORS UNIVERSE INC  
Document Type 10-Q  
Current Fiscal Year End Date --06-30  
Entity Common Stock, Shares Outstanding   8,151,206
Amendment Flag false  
Entity Central Index Key 0001089143  
Entity Current Reporting Status Yes  
Entity Voluntary Filers No  
Entity Filer Category Accelerated Filer  
Entity Well-known Seasoned Issuer No  
Document Period End Date Sep. 30, 2012  
Document Fiscal Year Focus 2013  
Document Fiscal Period Focus Q1