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Document and Entity Information
6 Months Ended
Apr. 30, 2013
Jun. 03, 2013
Document Information [Line Items]    
Document Type 10-Q  
Amendment Flag false  
Document Period End Date Apr. 30, 2013  
Document Fiscal Year Focus 2013  
Document Fiscal Period Focus Q2  
Trading Symbol RFIL  
Entity Registrant Name R F INDUSTRIES LTD  
Entity Central Index Key 0000740664  
Current Fiscal Year End Date --10-31  
Entity Filer Category Smaller Reporting Company  
Entity Common Stock Shares Outstanding   7,779,790