Capital Stock, Stock Plans and Stock-Based Compensation (Details Narrative) - USD ($)			9 Months Ended
	Jul. 24, 2025	Jan. 23, 2025	Sep. 30, 2025	Sep. 30, 2024	Dec. 31, 2024	May 31, 2024
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Common stock, par value			$ 0.001		$ 0.001
Proceeds from stock options exercised			$ 79,000	$ 264,000
Warrant to purchase					188,038
Warrants exercise price					$ 12.19	$ 11.50
Employee Stock Options
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Stock options, exercise price			$ 11.59	$ 9.43
Number of option exercised			88,700	58,700
Common Stock [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Number of shares issued from option exercise			40,208
Number of option exercised			67,000
Common Stock [Member] \| Employee Stock Options
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Number of shares issued from option exercise			21,700
Number of option exercised			21,700
Proceeds from stock options exercised			$ 79,000
Common Stock [Member] \| Minimum [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Stock options, exercise price			$ 3.15
Common Stock [Member] \| Minimum [Member] \| Employee Stock Options
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Stock options, exercise price			3.15
Common Stock [Member] \| Maximum [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Stock options, exercise price			7.75
Common Stock [Member] \| Maximum [Member] \| Employee Stock Options
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Stock options, exercise price			$ 4.19
Employee and Directors [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Unrecognized compensation cost related to unvested options consultant			$ 2,131,000
Weighted average term for unrecognized and unvested option to be recognized			3 years
2017 Stock Option Plan [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Number of shares grants		50,000
Vests period		6 years
Vests percentage		20.00%
Vests period		5 years
Stock options, exercise price		$ 10.70
2017 Stock Option Plan [Member] \| Incentive Stock Option Agreement [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Common stock, par value		$ 0.001
2003 Outside Directors Stock Option Plan [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Number of shares grants	10,000
Vests percentage	25.00%
Vests period	4 years
Stock options, exercise price	$ 12.23
2003 Outside Directors Stock Option Plan [Member] \| Portion of Director Fee Earned in Common Stock [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Allocated share-based compensation expense			$ 359,000
2003 Outside Directors Stock Option Plan [Member] \| Common Stock [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Number of shares issued from option exercise			38,256

PERMA FIX ENVIRONMENTAL SERVICES INC 10-Q