Represents the percent of the adjusted borrowing base required by the debt instrument covenant.

No definition available.

Name:	rfil_DebtInstrumentCovenantAdjustedBorrowingBasePercent
Namespace Prefix:	rfil_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

The total amount of capital expenditures that cannot be exceeded under the covenant.

+ References

No definition available.

+ Details

Name:	rfil_DebtInstrumentCovenantCapitalExpenditures
Namespace Prefix:	rfil_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The required minimum excess availability amount.

+ References

No definition available.

+ Details

Name:	rfil_DebtInstrumentCovenantExcessAvailabilityAmount
Namespace Prefix:	rfil_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Represents covenant for fixed charge ratio.

+ References

No definition available.

+ Details

Name:	rfil_DebtInstrumentCovenantFixedChargeCoverageRatio
Namespace Prefix:	rfil_
Data Type:	xbrli:pureItemType
Balance Type:	na
Period Type:	duration

- Definition

The minimum outstanding principal amount required by the debt instrument.

+ References

No definition available.

+ Details

Name:	rfil_DebtInstrumentCovenantMinimumOutstandingPrincipalAmount
Namespace Prefix:	rfil_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The floor rate for the adjustment of interest rates.

+ References

No definition available.

+ Details

Name:	rfil_FloorRateAdjustedInterestRate
Namespace Prefix:	rfil_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ References

No definition available.

+ Details

Name:	us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section S50
-Paragraph 8
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480657/210-10-S50-8

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(19)(b))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1

+ Details

Name:	us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The fee, expressed as a percentage of the line of credit facility, for available but unused credit capacity under the credit facility.

+ References

No definition available.

+ Details

Name:	us-gaap_LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Reflects the total carrying amount as of the balance sheet date of debt having initial terms less than one year or the normal operating cycle, if longer.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 942
-SubTopic 210
-Name Accounting Standards Codification
-Section S45
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147477657/942-210-S45-1

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 942
-SubTopic 210
-Name Accounting Standards Codification
-Section S50
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478478/942-210-S50-1

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 942
-SubTopic 210
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(13))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478546/942-210-S99-1

Reference 4: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(19))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1

Reference 5: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section S50
-Paragraph 8
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480657/210-10-S50-8

Reference 6: http://www.xbrl.org/2003/role/exampleRef
-Topic 852
-SubTopic 10
-Name Accounting Standards Codification
-Section 55
-Paragraph 10
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481372/852-10-55-10

Reference 7: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 944
-SubTopic 210
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(a)(16)(a)(1))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478777/944-210-S99-1

+ Details

Name:	us-gaap_ShortTermBorrowings
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Details

Name:	us-gaap_LineOfCreditFacilityAxis=rfil_EBCRevolvingLoanFacilityMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_VariableRateAxis=us-gaap_SecuredOvernightFinancingRateSofrMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_VariableRateAxis=rfil_AdjustedTermSOFRMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_LineOfCreditFacilityAxis=rfil_EBCAdditionalLineMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_LineOfCreditFacilityAxis=rfil_SwingLineLoanMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_LineOfCreditFacilityAxis=rfil_EBCCreditAgreementMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_RangeAxis=srt_MinimumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Note 12 - Term Loan and Line of Credit 1 (Details Textual) - USD ($)	Mar. 14, 2024	Jul. 31, 2026	Nov. 05, 2025	Aug. 12, 2024	Jul. 13, 2024	Jun. 14, 2024	Mar. 15, 2024
EBC Revolving Loan Facility [Member]
Line of Credit Facility, Maximum Borrowing Capacity							$ 15,000,000
Debt Instrument, Covenant, Minimum Outstanding Principal Amount			$ 4,000,000
Short-Term Debt		$ 5,718,000
EBC Revolving Loan Facility [Member] \| Secured Overnight Financing Rate (SOFR) [Member]
Debt Instrument, Basis Spread on Variable Rate	0.11448%
EBC Revolving Loan Facility [Member] \| Adjusted Term SOFR [Member]
Debt Instrument, Basis Spread on Variable Rate	5.00%
EBC Additional Line [Member]
Line of Credit Facility, Maximum Borrowing Capacity				$ 333,333	$ 666,667	$ 1,000,000	1,000,000
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage	0.50%
EBC Additional Line [Member] \| Adjusted Term SOFR [Member]
Debt Instrument, Basis Spread on Variable Rate	6.50%
Floor Rate, Adjusted Interest Rate	2.00%
Swing Line Loan [Member]
Line of Credit Facility, Maximum Borrowing Capacity							$ 3,000,000
EBC Credit Agreement [Member]
Debt Instrument, Covenant, Fixed Charge Coverage Ratio	1.1
Debt Instrument Covenant, Capital Expenditures	$ 2,500,000
EBC Credit Agreement [Member] \| Minimum [Member]
Debt Instrument Covenant, Excess Availability Amount	$ 1,000,000
Debt Instrument Covenant, Adjusted Borrowing Base Percent	10.00%