Document And Entity Information (USD $) In Millions, except Share data, unless otherwise specified	12 Months Ended
	Oct. 31, 2013	Jan. 10, 2014	Apr. 30, 2013
Document Information [Line Items]
Document Type	10-K
Amendment Flag	false
Document Period End Date	Oct. 31, 2013
Document Fiscal Year Focus	2013
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		8,153,658
Entity Public Float			$ 37.6