Significant Accounting Policies (Policies)	9 Months Ended
Jul. 31, 2023
Accounting Policies [Abstract]
Consolidation, Policy [Policy Text Block]	*Principles of consolidation* The accompanying unaudited condensed consolidated financial statements for the periods ended on or before January 31, 2022 include the accounts of RF Industries, Ltd. and our four wholly-owned subsidiaries: Cables Unlimited, Inc. (“Cables Unlimited”), Rel-Tech Electronics, Inc. (“Rel-Tech”), C Enterprises, Inc. (“C Enterprises”), and Schroff Technologies International, Inc. (“Schrofftech”). The unaudited condensed consolidated financial statements for the three and nine months ended July 31, 2023 include the accounts of RF Industries, Ltd. and our five wholly-owned subsidiaries: Cables Unlimited, Inc. (“Cables Unlimited”), Rel-Tech Electronics, Inc. (“Rel-Tech”), C Enterprises, Inc. (“C Enterprises”), Schroff Technologies International, Inc. (“Schrofftech”), and Microlab/FXR LLC (“Microlab”). Microlab is a wholly-owned subsidiary that RF Industries, Ltd. acquired on March 1, 2022. For periods on or before January 31, 2022, references herein to the “Company”, “we”, “us”, or “our” shall refer to RF Industries, Ltd., Cables Unlimited, Rel-Tech, C Enterprises, and Schrofftech and for all periods after January 31, 2022, reference to the “Company”, “we”, “us”, or “our” shall refer to RF Industries, Ltd., Cables Unlimited, Rel-Tech, C Enterprises, Schrofftech and Microlab. 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 July 31, 2023 and October 31, 2022, the carrying amounts reflected in the accompanying unaudited 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 June 2016, the Financial Accounting Standards Board (“FASB”) issued ASU 2016-13, Financial Instruments—Credit Losses, which requires a financial asset (or a group of financial assets) measured at amortized cost basis to be presented at the net amount expected to be collected. The allowance for credit losses is a valuation account that is deducted from the amortized cost basis of the financial asset(s) to present the net carrying value at the amount expected to be collected on the financial asset. The guidance is effective for fiscal years beginning after December 15, 2019. In November 2019, the FASB issued ASU 2019-10, Financial Instruments—Credit Losses (Topic 326), which pushes back the effective date for public business entities that are smaller reporting companies, as defined by the SEC, to fiscal years beginning after December 15, 2022. Early adoption is permitted. We are currently evaluating the impact the adoption of this new standard will have on our unaudited condensed consolidated financial statements.

Significant Accounting Policies (Policies)

9 Months Ended

Jul. 31, 2023

Consolidation, Policy [Policy Text Block]

Principles of consolidation

The accompanying unaudited condensed consolidated financial statements for the periods ended on or before January 31, 2022 include the accounts of RF Industries, Ltd. and our four wholly-owned subsidiaries: Cables Unlimited, Inc. (“Cables Unlimited”), Rel-Tech Electronics, Inc. (“Rel-Tech”), C Enterprises, Inc. (“C Enterprises”), and Schroff Technologies International, Inc. (“Schrofftech”). The unaudited condensed consolidated financial statements for the three and nine months ended July 31, 2023 include the accounts of RF Industries, Ltd. and our five wholly-owned subsidiaries: Cables Unlimited, Inc. (“Cables Unlimited”), Rel-Tech Electronics, Inc. (“Rel-Tech”), C Enterprises, Inc. (“C Enterprises”), Schroff Technologies International, Inc. (“Schrofftech”), and Microlab/FXR LLC (“Microlab”). Microlab is a wholly-owned subsidiary that RF Industries, Ltd. acquired on March 1, 2022. For periods on or before January 31, 2022, references herein to the “Company”, “we”, “us”, or “our” shall refer to RF Industries, Ltd., Cables Unlimited, Rel-Tech, C Enterprises, and Schrofftech and for all periods after January 31, 2022, reference to the “Company”, “we”, “us”, or “our” shall refer to RF Industries, Ltd., Cables Unlimited, Rel-Tech, C Enterprises, Schrofftech and Microlab. 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 July 31, 2023 and October 31, 2022, the carrying amounts reflected in the accompanying unaudited 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 June 2016, the Financial Accounting Standards Board (“FASB”) issued ASU 2016-13, Financial Instruments—Credit Losses, which requires a financial asset (or a group of financial assets) measured at amortized cost basis to be presented at the net amount expected to be collected. The allowance for credit losses is a valuation account that is deducted from the amortized cost basis of the financial asset(s) to present the net carrying value at the amount expected to be collected on the financial asset. The guidance is effective for fiscal years beginning after December 15, 2019. In November 2019, the FASB issued ASU 2019-10, Financial Instruments—Credit Losses (Topic 326), which pushes back the effective date for public business entities that are smaller reporting companies, as defined by the SEC, to fiscal years beginning after December 15, 2022. Early adoption is permitted. We are currently evaluating the impact the adoption of this new standard will have on our unaudited condensed consolidated financial statements.