Significant Accounting Policies (Policies)	6 Months Ended
Apr. 30, 2025
Accounting Policies [Abstract]
Consolidation, Policy [Policy Text Block]	*Principles of consolidation* The accompanying unaudited condensed consolidated financial statements include the accounts of RF Industries, Ltd., Cables Unlimited, Inc. (“Cables Unlimited”), Rel-Tech Electronics, Inc. (“Rel-Tech”), C Enterprises, Inc. (“C Enterprises”), Schroff Technologies International, Ltd. (“Schrofftech”), and Microlab/FXR LLC (“Microlab”), wholly-owned subsidiaries of RF Industries, Ltd. All intercompany balances and transactions have been eliminated in consolidation.
Fair Value Measurement, Policy [Policy Text Block]	*Fair value measurement* We measure at fair value certain financial assets and liabilities. Fair value is defined as the price that would be received to sell an asset or transfer a liability in an orderly transaction between market participants at the measurement date. GAAP specifies a hierarchy of valuation techniques based on whether the inputs to those valuation techniques are observable or unobservable. Observable inputs reflect market data obtained from independent sources, while unobservable inputs reflect our market assumptions. These two types of inputs have created the following fair-value hierarchy: Level 1— Quoted prices for identical instruments in active markets; Level 2— Quoted prices for similar instruments in active markets, quoted prices for identical or similar instruments in markets that are not active, and model-derived valuations in which all significant inputs and significant value drivers are observable in active markets; and Level 3— Valuations derived from valuation techniques in which one or more significant inputs or significant value drivers are unobservable. As of April 30, 2025 and October 31, 2024, the carrying amounts reflected in the accompanying condensed consolidated balance sheets for cash and cash equivalents, accounts receivable, and accounts payable approximated their carrying value due to their short-term nature.
New Accounting Pronouncements, Policy [Policy Text Block]	*Recent accounting standards* *Recently issued accounting pronouncements not yet adopted:* In November 2023, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2023-07, Segment Reporting (Topic 280): Improvements to Reportable Segment Disclosures, which expands annual and interim disclosure requirements for reportable segments, primarily through enhanced disclosures about significant segment expenses. ASU 2023-07 is effective for our annual periods beginning January 1, 2024, and for interim periods beginning January 1, 2025, with early adoption permitted. We are currently evaluating the potential effect that the updated standard will have on our financial statement disclosures for the year ending October 31, 2025. In December 2023, the FASB issued ASU 2023-09, Income Taxes (Topic 740): Improvements to Income Tax Disclosures, to expand the disclosure requirements for income taxes, specifically related to the effective tax rate reconciliation and income taxes paid. ASU 2023-09 is effective for our annual periods beginning January 1, 2025, with early adoption permitted. We are currently evaluating the potential effect that the updated standard will have on our financial statement disclosures.

Significant Accounting Policies (Policies)

6 Months Ended

Apr. 30, 2025

Consolidation, Policy [Policy Text Block]

Principles of consolidation

The accompanying unaudited condensed consolidated financial statements include the accounts of RF Industries, Ltd., Cables Unlimited, Inc. (“Cables Unlimited”), Rel-Tech Electronics, Inc. (“Rel-Tech”), C Enterprises, Inc. (“C Enterprises”), Schroff Technologies International, Ltd. (“Schrofftech”), and Microlab/FXR LLC (“Microlab”), wholly-owned subsidiaries of RF Industries, Ltd. All intercompany balances and transactions have been eliminated in consolidation.

Fair Value Measurement, Policy [Policy Text Block]

Fair value measurement

We measure at fair value certain financial assets and liabilities. Fair value is defined as the price that would be received to sell an asset or transfer a liability in an orderly transaction between market participants at the measurement date. GAAP specifies a hierarchy of valuation techniques based on whether the inputs to those valuation techniques are observable or unobservable. Observable inputs reflect market data obtained from independent sources, while unobservable inputs reflect our market assumptions. These two types of inputs have created the following fair-value hierarchy:

Level 1— Quoted prices for identical instruments in active markets;

Level 2— Quoted prices for similar instruments in active markets, quoted prices for identical or similar instruments in markets that are not active, and model-derived valuations in which all significant inputs and significant value drivers are observable in active markets; and

Level 3— Valuations derived from valuation techniques in which one or more significant inputs or significant value drivers are unobservable.

As of April 30, 2025 and October 31, 2024, the carrying amounts reflected in the accompanying condensed consolidated balance sheets for cash and cash equivalents, accounts receivable, and accounts payable approximated their carrying value due to their short-term nature.

New Accounting Pronouncements, Policy [Policy Text Block]

Recent accounting standards

Recently issued accounting pronouncements not yet adopted:

In November 2023, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2023-07, Segment Reporting (Topic 280): Improvements to Reportable Segment Disclosures, which expands annual and interim disclosure requirements for reportable segments, primarily through enhanced disclosures about significant segment expenses. ASU 2023-07 is effective for our annual periods beginning January 1, 2024, and for interim periods beginning January 1, 2025, with early adoption permitted. We are currently evaluating the potential effect that the updated standard will have on our financial statement disclosures for the year ending October 31, 2025.

In December 2023, the FASB issued ASU 2023-09, Income Taxes (Topic 740): Improvements to Income Tax Disclosures, to expand the disclosure requirements for income taxes, specifically related to the effective tax rate reconciliation and income taxes paid. ASU 2023-09 is effective for our annual periods beginning January 1, 2025, with early adoption permitted. We are currently evaluating the potential effect that the updated standard will have on our financial statement disclosures.