Note 7 - Stock-based Compensation and Equity Transactions (Details Textual)						3 Months Ended		9 Months Ended
	Jan. 13, 2025 shares	Dec. 02, 2024 shares	Apr. 16, 2024 shares	Jan. 11, 2024 shares	Nov. 01, 2023 shares	Jul. 31, 2025 USD ($) shares	Jul. 31, 2024 USD ($) shares	Jul. 31, 2025 USD ($) shares	Jul. 31, 2024 USD ($) shares
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term								6 years 10 months 28 days
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Weighted Average Remaining Contractual Term								5 years 8 months 1 day
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Vested and Expected to Vest, Exercisable, Weighted Average Remaining Contractual Term								6 years 10 months 28 days
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Intrinsic Value \| $						$ 3,480,000		$ 3,480,000
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Intrinsic Value \| $						1,551,000		1,551,000
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Vested and Expected to Vest, Outstanding, Aggregate Intrinsic Value \| $						3,480,000		3,480,000
Selling, General and Administrative Expenses [Member]
Share-Based Payment Arrangement, Expense \| $						219,000	$ 241,000	640,000	$ 744,000
Restricted Stock [Member]
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount \| $						$ 686,000		$ 686,000
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition								1 year 3 months 18 days
Incentive Stock Options [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Gross (in shares)						0	0
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount \| $						$ 919,000		$ 919,000
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition								1 year 4 months 24 days
Incentive Stock Options [Member] \| Share-Based Payment Arrangement, Employee [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Gross (in shares)								0	0
One Officer [Member] \| Restricted Stock [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Gross (in shares)					15,202
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period (Year)					1 year
One Officer [Member] \| Restricted Stock [Member] \| Vesting On January 31, 2024 [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Rights, Percentage					0.25%
One Officer [Member] \| Restricted Stock [Member] \| Share-Based Payment Arrangement, Tranche Two [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period (Year)					3 years
One Manager and Three Officers [Member] \| Restricted Stock [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Gross (in shares)				110,099
One Manager and Three Officers [Member] \| Incentive Stock Options [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Gross (in shares)				220,001
One Manager and Three Officers [Member] \| Restricted Stock and Incentive Stock Options [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period (Year)				4 years
One Manager and Three Officers [Member] \| Restricted Stock and Incentive Stock Options [Member] \| Share-Based Payment Arrangement, Tranche Two [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period (Year)				3 years
One Manager and Three Officers [Member] \| Restricted Stock and Incentive Stock Options [Member] \| Vesting On January 11, 2025 [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Rights, Percentage				0.25%
Two Managers and Three Officers [Member] \| Restricted Stock [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares)	82,500
Two Managers and Three Officers [Member] \| Incentive Stock Options [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Gross (in shares)	165,000
Two Managers and Three Officers [Member] \| Restricted Stock and Incentive Stock Options [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period (Year)	4 years
Two Managers and Three Officers [Member] \| Restricted Stock and Incentive Stock Options [Member] \| Share-Based Payment Arrangement, Tranche Two [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period (Year)	3 years
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting, Number of Installments	12			12
Two Managers and Three Officers [Member] \| Restricted Stock and Incentive Stock Options [Member] \| Vesting on January 13, 2026 [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Rights, Percentage	25.00%
Three Managers [Member] \| Incentive Stock Options [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period (Year)			4 years
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares)			25,000
Three Managers [Member] \| Incentive Stock Options [Member] \| Share-Based Payment Arrangement, Tranche Two [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period (Year)			3 years
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting, Number of Installments			12
Three Managers [Member] \| Incentive Stock Options [Member] \| Vesting on April 16, 2025 [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Rights, Percentage			0.25%
Seven Managers [Member] \| Incentive Stock Options [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Gross (in shares)		47,500
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period (Year)		4 years
Seven Managers [Member] \| Incentive Stock Options [Member] \| Vesting on December 2, 2025 [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Rights, Percentage		25.00%

R F INDUSTRIES LTD 10-Q