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Allocation of Purchase Price at Fair Value (Detail) (USD $) | Nov. 02, 2014
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Current assets | $ 1,875,000 rfil_BusinessAcquisitionPurchasesPriceAllocationCurrentAssets
Fixed assets | 150,000 rfil_BusinessAcquisitionPurchasesPriceAllocationFixedAssets
Intangible assets | 1,888,000 rfil_BusinessAcquisitionPurchasesPriceAllocationIntangibleAssetsOtherThanGoodwill
Goodwill | 2,311,000 rfil_BusinessAcquisitionPurchasesPriceAllocationGoodwillAmount
Non-interest bearing liabilities | (1,429,000)rfil_BusinessAcquisitionPurchasesPriceNoninterestBearingLiabilities
Net assets | $ 4,795,000 rfil_BusinessAcquisitionOfCostOfAcquiredEntityPurchasePrice

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- Definition Business Acquisition Cost Of Acquired Entity Purchases Price. + References No definition available. + Details
Name: | rfil_BusinessAcquisitionOfCostOfAcquiredEntityPurchasePrice
Namespace Prefix: | rfil_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The amount of acquisition cost of a business combination allocated to current assets. + References No definition available. + Details
Name: | rfil_BusinessAcquisitionPurchasesPriceAllocationCurrentAssets
Namespace Prefix: | rfil_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- Definition The amount of acquisition cost of a business combination allocated to fixed assets. + References No definition available. + Details
Name: | rfil_BusinessAcquisitionPurchasesPriceAllocationFixedAssets
Namespace Prefix: | rfil_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- Definition Amount of goodwill arising from a business combination, which is the excess of the cost of the acquired entity over the amounts assigned to assets acquired and liabilities assumed. + References No definition available. + Details
Name: | rfil_BusinessAcquisitionPurchasesPriceAllocationGoodwillAmount
Namespace Prefix: | rfil_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- Definition Amount of acquisition cost of a business combination allocated to assets, excluding financial assets and goodwill, lacking physical substance. + References No definition available. + Details
Name: | rfil_BusinessAcquisitionPurchasesPriceAllocationIntangibleAssetsOtherThanGoodwill
Namespace Prefix: | rfil_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The amount of acquisition cost of a business combination allocated to Non-interest bearing liabilities. + References No definition available. + Details
Name: | rfil_BusinessAcquisitionPurchasesPriceNoninterestBearingLiabilities
Namespace Prefix: | rfil_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant