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Commitments - Additional Information (Detail) (USD $) | 1 Months Ended | 6 Months Ended | 1 Months Ended
--- | --- | --- | ---
Apr. 30, 2014 | Apr. 30, 2015 | Mar. 31, 2015 sqft
Commitments And Contingencies [Line Items] |  |  |
Operating Leases, Rent Expense, Net, Total |  | $ 456,000 us-gaap_OperatingLeasesRentExpenseNet |
Minimum annual rental payments | 19,000 us-gaap_SaleLeasebackTransactionAnnualRentalPayments |  |
Lease Expiration Date | Mar. 31, 2017 |  |
Yaphank [Member] | Commitments [Member] |  |  |
Commitments And Contingencies [Line Items] |  |  |
Lease Expiration Date |  | Jun. 30, 2016 |
Area of Land |  | 12,000 us-gaap_AreaOfLand / us-gaap_EligibleItemOrGroupForFairValueOptionAxis = us-gaap_CommitmentsMember / us-gaap_StatementGeographicalAxis = rfil_NewYorkMember |
Operating Leases, Rent Expense |  | 13,000 us-gaap_LeaseAndRentalExpense / us-gaap_EligibleItemOrGroupForFairValueOptionAxis = us-gaap_CommitmentsMember / us-gaap_StatementGeographicalAxis = rfil_NewYorkMember |
Las Vegas [Member] | Commitments [Member] |  |  |
Commitments And Contingencies [Line Items] |  |  |
Lease Expiration Date |  |  | Apr. 30, 2016
Area of Land |  |  | 4,500 us-gaap_AreaOfLand / us-gaap_EligibleItemOrGroupForFairValueOptionAxis = us-gaap_CommitmentsMember / us-gaap_StatementGeographicalAxis = rfil_NevadaMember
Operating Leases, Rent Expense |  |  | 4,270 us-gaap_LeaseAndRentalExpense / us-gaap_EligibleItemOrGroupForFairValueOptionAxis = us-gaap_CommitmentsMember / us-gaap_StatementGeographicalAxis = rfil_NevadaMember
East Brunswick [Member] | Commitments [Member] |  |  |
Commitments And Contingencies [Line Items] |  |  |
Lease Expiration Date |  | Sep. 30, 2017 |
Area of Land |  | 15,000 us-gaap_AreaOfLand / us-gaap_EligibleItemOrGroupForFairValueOptionAxis = us-gaap_CommitmentsMember / us-gaap_StatementGeographicalAxis = rfil_NewJerseyMember |
Operating Leases, Rent Expense |  | $ 11,655 us-gaap_LeaseAndRentalExpense / us-gaap_EligibleItemOrGroupForFairValueOptionAxis = us-gaap_CommitmentsMember / us-gaap_StatementGeographicalAxis = rfil_NewJerseyMember |

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- Definition Area of land held. + References No definition available. + Details
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- Definition Amount of rent expense incurred for leased assets, including but not limited to, furniture and equipment, that is not directly or indirectly associated with the manufacture, sale or creation of a product or product line. + References No definition available. + Details
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- Definition Date which lease or group of leases is set to expire, in CCYY-MM-DD format. + References No definition available. + Details
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- Definition Rental expense for the reporting period incurred under operating leases, including minimum and any contingent rent expense, net of related sublease income. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6453985&loc=d3e41499-112717 + Details
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- Definition The yearly payments due under the lease entered into in connection with the transaction involving the sale of property to another party and the lease of the property back to the seller. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6452660&loc=d3e36991-112694 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 40 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6456341&loc=d3e50796-112755 + Details
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