3.26.3 html 197 235 1 false 51 0 false 4 false false R1.htm 000 - Document - Document And Entity Information Sheet http://www.rfindustries.com/20260731/role/statement-document-and-entity-information Document And Entity Information Cover 1 false false R2.htm 001 - Statement - Condensed Consolidated Balance Sheets (Unaudited) Sheet http://www.rfindustries.com/20260731/role/statement-condensed-consolidated-balance-sheets-unaudited- Condensed Consolidated Balance Sheets (Unaudited) Statements 2 false false R3.htm 002 - Statement - Condensed Consolidated Balance Sheets (Unaudited) (Parentheticals) Sheet http://www.rfindustries.com/20260731/role/statement-condensed-consolidated-balance-sheets-unaudited-parentheticals Condensed Consolidated Balance Sheets (Unaudited) (Parentheticals) Statements 3 false false R4.htm 003 - Statement - Condensed Consolidated Statements of Operations (Unaudited) Sheet http://www.rfindustries.com/20260731/role/statement-condensed-consolidated-statements-of-operations-unaudited Condensed Consolidated Statements of Operations (Unaudited) Statements 4 false false R5.htm 004 - Statement - Condensed Consolidated Statements of Stockholders’ Equity (Unaudited) Sheet http://www.rfindustries.com/20260731/role/statement-condensed-consolidated-statements-of-stockholders-equity-unaudited Condensed Consolidated Statements of Stockholders’ Equity (Unaudited) Statements 5 false false R6.htm 005 - Statement - Condensed Consolidated Statements of Cash Flows (Unaudited) Sheet http://www.rfindustries.com/20260731/role/statement-condensed-consolidated-statements-of-cash-flows-unaudited Condensed Consolidated Statements of Cash Flows (Unaudited) Statements 6 false false R7.htm 006 - Disclosure - Note 1 - Unaudited Interim Condensed Consolidated Financial Statements Sheet http://www.rfindustries.com/20260731/role/statement-note-1-unaudited-interim-condensed-consolidated-financial-statements Note 1 - Unaudited Interim Condensed Consolidated Financial Statements Notes 7 false false R8.htm 007 - Disclosure - Note 2 - Concentrations of Credit Risk Sheet http://www.rfindustries.com/20260731/role/statement-note-2-concentrations-of-credit-risk Note 2 - Concentrations of Credit Risk Notes 8 false false R9.htm 008 - Disclosure - Note 3 - Inventories and Major Vendors Sheet http://www.rfindustries.com/20260731/role/statement-note-3-inventories-and-major-vendors Note 3 - Inventories and Major Vendors Notes 9 false false R10.htm 009 - Disclosure - Note 4 - Other Current Assets Sheet http://www.rfindustries.com/20260731/role/statement-note-4-other-current-assets Note 4 - Other Current Assets Notes 10 false false R11.htm 010 - Disclosure - Note 5 - Accrued Expenses Sheet http://www.rfindustries.com/20260731/role/statement-note-5-accrued-expenses Note 5 - Accrued Expenses Notes 11 false false R12.htm 011 - Disclosure - Note 6 - Income (Loss) Per Share Sheet http://www.rfindustries.com/20260731/role/statement-note-6-income-loss-per-share Note 6 - Income (Loss) Per Share Notes 12 false false R13.htm 012 - Disclosure - Note 7 - Stock-based Compensation and Equity Transactions Sheet http://www.rfindustries.com/20260731/role/statement-note-7-stockbased-compensation-and-equity-transactions Note 7 - Stock-based Compensation and Equity Transactions Notes 13 false false R14.htm 013 - Disclosure - Note 8 - Segment Information Sheet http://www.rfindustries.com/20260731/role/statement-note-8-segment-information Note 8 - Segment Information Notes 14 false false R15.htm 014 - Disclosure - Note 9 - Income Taxes Sheet http://www.rfindustries.com/20260731/role/statement-note-9-income-taxes Note 9 - Income Taxes Notes 15 false false R16.htm 015 - Disclosure - Note 10 - Intangible Assets Sheet http://www.rfindustries.com/20260731/role/statement-note-10-intangible-assets Note 10 - Intangible Assets Notes 16 false false R17.htm 016 - Disclosure - Note 11 - Commitments Sheet http://www.rfindustries.com/20260731/role/statement-note-11-commitments Note 11 - Commitments Notes 17 false false R18.htm 017 - Disclosure - Note 12 - Term Loan and Line of Credit Sheet http://www.rfindustries.com/20260731/role/statement-note-12-term-loan-and-line-of-credit Note 12 - Term Loan and Line of Credit Notes 18 false false R19.htm 018 - Disclosure - Note 13 - Cash Dividends and Declared Dividends Sheet http://www.rfindustries.com/20260731/role/statement-note-13-cash-dividends-and-declared-dividends Note 13 - Cash Dividends and Declared Dividends Notes 19 false false R20.htm 995445 - Disclosure - Insider Trading Arrangements Sheet http://xbrl.sec.gov/ecd/role/InsiderTradingArrangements Insider Trading Arrangements Notes 20 false false R21.htm 995465 - Disclosure - Note 2 - Concentrations of Credit Risk (Tables) Sheet http://www.rfindustries.com/20260731/role/statement-note-2-concentrations-of-credit-risk-tables Note 2 - Concentrations of Credit Risk (Tables) Tables http://www.rfindustries.com/20260731/role/statement-note-2-concentrations-of-credit-risk 21 false false R22.htm 995466 - Disclosure - Note 3 - Inventories and Major Vendors (Tables) Sheet http://www.rfindustries.com/20260731/role/statement-note-3-inventories-and-major-vendors-tables Note 3 - Inventories and Major Vendors (Tables) Tables http://www.rfindustries.com/20260731/role/statement-note-3-inventories-and-major-vendors 22 false false R23.htm 995467 - Disclosure - Note 4 - Other Current Assets (Tables) Sheet http://www.rfindustries.com/20260731/role/statement-note-4-other-current-assets-tables Note 4 - Other Current Assets (Tables) Tables http://www.rfindustries.com/20260731/role/statement-note-4-other-current-assets 23 false false R24.htm 995468 - Disclosure - Note 5 - Accrued Expenses (Tables) Sheet http://www.rfindustries.com/20260731/role/statement-note-5-accrued-expenses-tables Note 5 - Accrued Expenses (Tables) Tables http://www.rfindustries.com/20260731/role/statement-note-5-accrued-expenses 24 false false R25.htm 995469 - Disclosure - Note 6 - Income (Loss) Per Share (Tables) Sheet http://www.rfindustries.com/20260731/role/statement-note-6-income-loss-per-share-tables Note 6 - Income (Loss) Per Share (Tables) Tables http://www.rfindustries.com/20260731/role/statement-note-6-income-loss-per-share 25 false false R26.htm 995470 - Disclosure - Note 7 - Stock-based Compensation and Equity Transactions (Tables) Sheet http://www.rfindustries.com/20260731/role/statement-note-7-stockbased-compensation-and-equity-transactions-tables Note 7 - Stock-based Compensation and Equity Transactions (Tables) Tables http://www.rfindustries.com/20260731/role/statement-note-7-stockbased-compensation-and-equity-transactions 26 false false R27.htm 995471 - Disclosure - Note 8 - Segment Information (Tables) Sheet http://www.rfindustries.com/20260731/role/statement-note-8-segment-information-tables Note 8 - Segment Information (Tables) Tables http://www.rfindustries.com/20260731/role/statement-note-8-segment-information 27 false false R28.htm 995472 - Disclosure - Note 10 - Intangible Assets (Tables) Sheet http://www.rfindustries.com/20260731/role/statement-note-10-intangible-assets-tables Note 10 - Intangible Assets (Tables) Tables http://www.rfindustries.com/20260731/role/statement-note-10-intangible-assets 28 false false R29.htm 995473 - Disclosure - Note 11 - Commitments (Tables) Sheet http://www.rfindustries.com/20260731/role/statement-note-11-commitments-tables Note 11 - Commitments (Tables) Tables http://www.rfindustries.com/20260731/role/statement-note-11-commitments 29 false false R30.htm 995474 - Disclosure - Note 1 - Unaudited Interim Condensed Consolidated Financial Statements (Details Textual) Sheet http://www.rfindustries.com/20260731/role/statement-note-1-unaudited-interim-condensed-consolidated-financial-statements-details-textual Note 1 - Unaudited Interim Condensed Consolidated Financial Statements (Details Textual) Details http://www.rfindustries.com/20260731/role/statement-note-1-unaudited-interim-condensed-consolidated-financial-statements 30 false false R31.htm 995475 - Disclosure - Note 2 - Concentrations of Credit Risk (Details Textual) Sheet http://www.rfindustries.com/20260731/role/statement-note-2-concentrations-of-credit-risk-details-textual Note 2 - Concentrations of Credit Risk (Details Textual) Details http://www.rfindustries.com/20260731/role/statement-note-2-concentrations-of-credit-risk-tables 31 false false R32.htm 995476 - Disclosure - Note 2 - Concentrations of Credit Risk - Schedule of Customer Concentration (Details) Sheet http://www.rfindustries.com/20260731/role/statement-note-2-concentrations-of-credit-risk-schedule-of-customer-concentration-details Note 2 - Concentrations of Credit Risk - Schedule of Customer Concentration (Details) Details 32 false false R33.htm 995477 - Disclosure - Note 3 - Inventories and Major Vendors (Details Textual) Sheet http://www.rfindustries.com/20260731/role/statement-note-3-inventories-and-major-vendors-details-textual Note 3 - Inventories and Major Vendors (Details Textual) Details http://www.rfindustries.com/20260731/role/statement-note-3-inventories-and-major-vendors-tables 33 false false R34.htm 995478 - Disclosure - Note 3 - Inventories and Major Vendors - Schedule of Inventory (Details) Sheet http://www.rfindustries.com/20260731/role/statement-note-3-inventories-and-major-vendors-schedule-of-inventory-details Note 3 - Inventories and Major Vendors - Schedule of Inventory (Details) Details 34 false false R35.htm 995479 - Disclosure - Note 4 - Other Current Assets - Schedule of Other Assets (Details) Sheet http://www.rfindustries.com/20260731/role/statement-note-4-other-current-assets-schedule-of-other-assets-details Note 4 - Other Current Assets - Schedule of Other Assets (Details) Details 35 false false R36.htm 995480 - Disclosure - Note 5 – Accrued Expenses - Schedule of Accrued Expenses and Other Current Liabilities (Details) Sheet http://www.rfindustries.com/20260731/role/statement-note-5-accrued-expenses-schedule-of-accrued-expenses-and-other-current-liabilities-details Note 5 – Accrued Expenses - Schedule of Accrued Expenses and Other Current Liabilities (Details) Details 36 false false R37.htm 995481 - Disclosure - Note 6 - Income (Loss) Per Share (Details Textual) Sheet http://www.rfindustries.com/20260731/role/statement-note-6-income-loss-per-share-details-textual Note 6 - Income (Loss) Per Share (Details Textual) Details http://www.rfindustries.com/20260731/role/statement-note-6-income-loss-per-share-tables 37 false false R38.htm 995482 - Disclosure - Note 6 - Income (Loss) Per Share - Schedule of Earnings Per Share (Details) Sheet http://www.rfindustries.com/20260731/role/statement-note-6-income-loss-per-share-schedule-of-earnings-per-share-details Note 6 - Income (Loss) Per Share - Schedule of Earnings Per Share (Details) Details http://www.rfindustries.com/20260731/role/statement-note-6-income-loss-per-share-tables 38 false false R39.htm 995483 - Disclosure - Note 7 - Stock-based Compensation and Equity Transactions 1 (Details Textual) Sheet http://www.rfindustries.com/20260731/role/statement-note-7-stockbased-compensation-and-equity-transactions-1-details-textual Note 7 - Stock-based Compensation and Equity Transactions 1 (Details Textual) Details http://www.rfindustries.com/20260731/role/statement-note-7-stockbased-compensation-and-equity-transactions-tables 39 false false R40.htm 995484 - Disclosure - Note 7 - Stock-based Compensation and Equity Transactions 2 (Details Textual) Sheet http://www.rfindustries.com/20260731/role/statement-note-7-stockbased-compensation-and-equity-transactions-2-details-textual Note 7 - Stock-based Compensation and Equity Transactions 2 (Details Textual) Details http://www.rfindustries.com/20260731/role/statement-note-7-stockbased-compensation-and-equity-transactions-tables 40 false false R41.htm 995485 - Disclosure - Note 7 - Stock-based Compensation and Equity Transactions - Schedule of Valuation Assumption (Details) Sheet http://www.rfindustries.com/20260731/role/statement-note-7-stockbased-compensation-and-equity-transactions-schedule-of-valuation-assumption-details Note 7 - Stock-based Compensation and Equity Transactions - Schedule of Valuation Assumption (Details) Details 41 false false R42.htm 995486 - Disclosure - Note 7 - Stock-based Compensation and Equity Transactions - Schedule of Stock Options (Details) Sheet http://www.rfindustries.com/20260731/role/statement-note-7-stockbased-compensation-and-equity-transactions-schedule-of-stock-options-details Note 7 - Stock-based Compensation and Equity Transactions - Schedule of Stock Options (Details) Details 42 false false R43.htm 995487 - Disclosure - Note 8 - Segment Information (Details Textual) Sheet http://www.rfindustries.com/20260731/role/statement-note-8-segment-information-details-textual Note 8 - Segment Information (Details Textual) Details http://www.rfindustries.com/20260731/role/statement-note-8-segment-information-tables 43 false false R44.htm 995488 - Disclosure - Note 8 - Segment Information - Schedule of Segment Information (Details) Sheet http://www.rfindustries.com/20260731/role/statement-note-8-segment-information-schedule-of-segment-information-details Note 8 - Segment Information - Schedule of Segment Information (Details) Details 44 false false R45.htm 995489 - Disclosure - Note 8 - Segment Information - Schedule of Product Revenue (Details) Sheet http://www.rfindustries.com/20260731/role/statement-note-8-segment-information-schedule-of-product-revenue-details Note 8 - Segment Information - Schedule of Product Revenue (Details) Details 45 false false R46.htm 995490 - Disclosure - Note 8 - Segment Information - Schedule of Revenue By Region (Details) Sheet http://www.rfindustries.com/20260731/role/statement-note-8-segment-information-schedule-of-revenue-by-region-details Note 8 - Segment Information - Schedule of Revenue By Region (Details) Details 46 false false R47.htm 995491 - Disclosure - Note 9 - Income Taxes (Details Textual) Sheet http://www.rfindustries.com/20260731/role/statement-note-9-income-taxes-details-textual Note 9 - Income Taxes (Details Textual) Details http://www.rfindustries.com/20260731/role/statement-note-9-income-taxes 47 false false R48.htm 995492 - Disclosure - Note 10 - Intangible Assets (Details Textual) Sheet http://www.rfindustries.com/20260731/role/statement-note-10-intangible-assets-details-textual Note 10 - Intangible Assets (Details Textual) Details http://www.rfindustries.com/20260731/role/statement-note-10-intangible-assets-tables 48 false false R49.htm 995493 - Disclosure - Note 10 - Intangible Assets - Schedule of Intangible Assets (Details) Sheet http://www.rfindustries.com/20260731/role/statement-note-10-intangible-assets-schedule-of-intangible-assets-details Note 10 - Intangible Assets - Schedule of Intangible Assets (Details) Details 49 false false R50.htm 995494 - Disclosure - Note 10 - Intangible Assets - Schedule of Intangible Assets (Details) (Parentheticals) Sheet http://www.rfindustries.com/20260731/role/statement-note-10-intangible-assets-schedule-of-intangible-assets-details-parentheticals Note 10 - Intangible Assets - Schedule of Intangible Assets (Details) (Parentheticals) Details 50 false false R51.htm 995495 - Disclosure - Note 11 - Commitments (Details Textual) Sheet http://www.rfindustries.com/20260731/role/statement-note-11-commitments-details-textual Note 11 - Commitments (Details Textual) Details http://www.rfindustries.com/20260731/role/statement-note-11-commitments-tables 51 false false R52.htm 995496 - Disclosure - Note 11 - Commitments - Schedule of Lease Costs (Details) Sheet http://www.rfindustries.com/20260731/role/statement-note-11-commitments-schedule-of-lease-costs-details Note 11 - Commitments - Schedule of Lease Costs (Details) Details 52 false false R53.htm 995497 - Disclosure - Note 12 - Term Loan and Line of Credit 1 (Details Textual) Sheet http://www.rfindustries.com/20260731/role/statement-note-12-term-loan-and-line-of-credit-1-details-textual Note 12 - Term Loan and Line of Credit 1 (Details Textual) Details http://www.rfindustries.com/20260731/role/statement-note-12-term-loan-and-line-of-credit 53 false false R54.htm 995498 - Disclosure - Note 12 - Term Loan and Line of Credit 2 (Details Textual) Sheet http://www.rfindustries.com/20260731/role/statement-note-12-term-loan-and-line-of-credit-2-details-textual Note 12 - Term Loan and Line of Credit 2 (Details Textual) Details http://www.rfindustries.com/20260731/role/statement-note-12-term-loan-and-line-of-credit 54 false false R55.htm 995499 - Disclosure - Note 13 - Cash Dividends and Declared Dividends (Details Textual) Sheet http://www.rfindustries.com/20260731/role/statement-note-13-cash-dividends-and-declared-dividends-details-textual Note 13 - Cash Dividends and Declared Dividends (Details Textual) Details http://www.rfindustries.com/20260731/role/statement-note-13-cash-dividends-and-declared-dividends 55 false false All Reports Book All Reports rfil-20260731.xsd rfil-20260731_cal.xml rfil-20260731_def.xml rfil-20260731_lab.xml rfil-20260731_pre.xml rfil20260731c_10q.htm http://fasb.org/us-gaap/2026 http://xbrl.sec.gov/dei/2026 http://xbrl.sec.gov/ecd/2026 true true