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Components of Purchase Price at Fair Value (Detail) (USD $)	0 Months Ended	3 Months Ended
	Nov. 02, 2014	Jan. 31, 2015
Cash consideration paid	$ 3,090,000us-gaap_PaymentsToAcquireBusinessesGross
RF Industries, Ltd. common shares issued (252,381 shares)	1,060,000us-gaap_BusinessCombinationConsiderationTransferredEquityInterestsIssuedAndIssuable
Earn-out	645,000us-gaap_BusinessCombinationConsiderationTransferred1	3,090,000us-gaap_BusinessCombinationConsiderationTransferred1
Total purchase price	$ 4,795,000rfil_BusinessAcquisitionCostOfAcquiredEntityPurchasesPrice

X

- Definition

The total cost of the acquired entity including the cash paid to shareholders of acquired entities, fair value of debt and equity securities issued to shareholders of acquired entities, the fair value of the liabilities assumed, and direct costs of the acquisition.

+ References

No definition available.

+ Details

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X

- Definition

Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 30

-Section 30

-Paragraph 7

-URI http://asc.fasb.org/extlink&oid=6911251&loc=d3e6578-128477



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-Name Accounting Standards Codification

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-Section 50

-Paragraph 1

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- Definition

Amount of equity interests of the acquirer, including instruments or interests issued or issuable in consideration for the business combination.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 30

-Section 30

-Paragraph 7

-URI http://asc.fasb.org/extlink&oid=6911251&loc=d3e6578-128477



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X

- Definition

The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Investing Activities

-URI http://asc.fasb.org/extlink&oid=6516133



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-Topic 230

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-Section 45

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