XML 28 R1.htm IDEA: XBRL DOCUMENT v2.4.0.6
Document and Entity Information (USD $)
 12 Months Ended
Oct. 31, 2011
Apr. 30, 2011
Jan. 27, 2011
Document Information [Line Items]      
Document Type 10-K    
Amendment Flag false    
Document Period End Date Oct. 31, 2011    
Document Fiscal Year Focus 2011    
Document Fiscal Period Focus FY    
Trading Symbol RFIL    
Entity Registrant Name R F INDUSTRIES LTD    
Entity Central Index Key 0000740664    
Current Fiscal Year End Date --10-31    
Entity Well-known Seasoned Issuer No    
Entity Current Reporting Status Yes    
Entity Voluntary Filers No    
Entity Filer Category Smaller Reporting Company    
Entity Common Stock, Shares Outstanding     6,942,816
Entity Public Float   $ 22,917,481