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Document and Entity Information	6 Months Ended
	Apr. 30, 2012	Jun. 14, 2012
Document Information [Line Items]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Apr. 30, 2012
Document Fiscal Year Focus	2012
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		6,860,477

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