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v2.4.1.9

Inventories and major vendors - Additional Information (Detail) | 12 Months Ended
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Oct. 31, 2014 | Oct. 31, 2013
Inventory [Line Items] |  |
Number of major vendors | 2 rfil_NumberOfVendors | 2 rfil_NumberOfVendors
Vendor One |  |
Inventory [Line Items] |  |
Purchases of connector products, percentage | 15.00%us-gaap_ConcentrationRiskPercentage1 / us-gaap_MajorCustomersAxis = rfil_VendorOneMember | 20.00%us-gaap_ConcentrationRiskPercentage1 / us-gaap_MajorCustomersAxis = rfil_VendorOneMember
Vendor Two |  |
Inventory [Line Items] |  |
Purchases of connector products, percentage | 14.00%us-gaap_ConcentrationRiskPercentage1 / us-gaap_MajorCustomersAxis = rfil_VendorTwoMember | 17.00%us-gaap_ConcentrationRiskPercentage1 / us-gaap_MajorCustomersAxis = rfil_VendorTwoMember

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- Definition Number of vendors + References No definition available. + Details
Name: | rfil_NumberOfVendors
Namespace Prefix: | rfil_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

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- Definition For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 21 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=35750535&loc=d3e13537-108611 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 275 -SubTopic 10 -Section 50 -Paragraph 20 -URI http://asc.fasb.org/extlink&oid=6927468&loc=d3e6404-108592 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 20 -URI http://asc.fasb.org/extlink&oid=35750535&loc=d3e13531-108611 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 275 -SubTopic 10 -Section 50 -Paragraph 18 -URI http://asc.fasb.org/extlink&oid=6927468&loc=d3e6351-108592 + Details
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Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

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- Details
Name: | us-gaap_InventoryLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Details
Name: | us-gaap_MajorCustomersAxis=rfil_VendorOneMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | us-gaap_MajorCustomersAxis=rfil_VendorTwoMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |