Avenue Therapeutics, Inc. Annual report [Section 13 and 15(d), not S-K Item 405]

Annual report [Section 13 and 15(d), not S-K Item 405]

Note 7 - Stockholders' Equity - Schedule of Warrants under the Black-Scholes Model (Details)

Note 7 - Stockholders' Equity - Schedule of Warrants under the Black-Scholes Model (Details)	Dec. 31, 2025	Dec. 31, 2024	May 01, 2024	Jan. 05, 2024
Measurement Input, Share Price [Member] \| January 2023 Warrants [Member]
Warrant Liability				14.25
Measurement Input, Share Price [Member] \| New Series A Warrants [Member]
Warrant Liability				14.25
Measurement Input, Share Price [Member] \| New Series B Warrants [Member]
Warrant Liability				14.25
Measurement Input, Share Price [Member] \| October 2022 Warrants [Member]
Warrant Liability	0.68	2	4.76
Measurement Input, Share Price [Member] \| November 2023 Warrants [Member]
Warrant Liability			4.76
Measurement Input, Share Price [Member] \| January 2024 Warrants [Member]
Warrant Liability			4.76
Measurement Input, Share Price [Member] \| Series C Warrants [Member]
Warrant Liability			4.76
Measurement Input, Share Price [Member] \| Series D Warrants [Member]
Warrant Liability			4.76
Measurement Input, Share Price [Member] \| Placement Agents Warrants [Member]
Warrant Liability			4.76
Measurement Input, Risk Free Interest Rate [Member] \| January 2023 Warrants [Member]
Warrant Liability				0.044
Measurement Input, Risk Free Interest Rate [Member] \| New Series A Warrants [Member]
Warrant Liability				0.0402
Measurement Input, Risk Free Interest Rate [Member] \| New Series B Warrants [Member]
Warrant Liability				0.044
Measurement Input, Risk Free Interest Rate [Member] \| October 2022 Warrants [Member]
Warrant Liability	0.0375	0.0427	0.0479
Measurement Input, Risk Free Interest Rate [Member] \| November 2023 Warrants [Member]
Warrant Liability			0.0464
Measurement Input, Risk Free Interest Rate [Member] \| January 2024 Warrants [Member]
Warrant Liability			0.0464
Measurement Input, Risk Free Interest Rate [Member] \| Series C Warrants [Member]
Warrant Liability			0.0464
Measurement Input, Risk Free Interest Rate [Member] \| Series D Warrants [Member]
Warrant Liability			0.0496
Measurement Input, Risk Free Interest Rate [Member] \| Placement Agents Warrants [Member]
Warrant Liability			0.0464
Measurement Input, Expected Dividend Rate [Member] \| January 2023 Warrants [Member]
Warrant Liability				0
Measurement Input, Expected Dividend Rate [Member] \| New Series A Warrants [Member]
Warrant Liability				0
Measurement Input, Expected Dividend Rate [Member] \| New Series B Warrants [Member]
Warrant Liability				0
Measurement Input, Expected Dividend Rate [Member] \| October 2022 Warrants [Member]
Warrant Liability	0	0	0
Measurement Input, Expected Dividend Rate [Member] \| November 2023 Warrants [Member]
Warrant Liability			0
Measurement Input, Expected Dividend Rate [Member] \| January 2024 Warrants [Member]
Warrant Liability			0
Measurement Input, Expected Dividend Rate [Member] \| Series C Warrants [Member]
Warrant Liability			0
Measurement Input, Expected Dividend Rate [Member] \| Series D Warrants [Member]
Warrant Liability			0
Measurement Input, Expected Dividend Rate [Member] \| Placement Agents Warrants [Member]
Warrant Liability			0
Measurement Input, Expected Term [Member] \| January 2023 Warrants [Member]
Warrant Liability				2.1
Measurement Input, Expected Term [Member] \| New Series A Warrants [Member]
Warrant Liability				5
Measurement Input, Expected Term [Member] \| New Series B Warrants [Member]
Warrant Liability				1.5
Measurement Input, Expected Term [Member] \| October 2022 Warrants [Member]
Warrant Liability	1.78	2.8	3.4
Measurement Input, Expected Term [Member] \| November 2023 Warrants [Member]
Warrant Liability			4.5
Measurement Input, Expected Term [Member] \| January 2024 Warrants [Member]
Warrant Liability			4.7
Measurement Input, Expected Term [Member] \| Series C Warrants [Member]
Warrant Liability			5
Measurement Input, Expected Term [Member] \| Series D Warrants [Member]
Warrant Liability			1.5
Measurement Input, Expected Term [Member] \| Placement Agents Warrants [Member]
Warrant Liability			5
Measurement Input, Price Volatility [Member] \| January 2023 Warrants [Member]
Warrant Liability				1.85
Measurement Input, Price Volatility [Member] \| New Series A Warrants [Member]
Warrant Liability				1.38
Measurement Input, Price Volatility [Member] \| New Series B Warrants [Member]
Warrant Liability				1.87
Measurement Input, Price Volatility [Member] \| October 2022 Warrants [Member]
Warrant Liability	1.51	1.55	1.60
Measurement Input, Price Volatility [Member] \| November 2023 Warrants [Member]
Warrant Liability			1.48
Measurement Input, Price Volatility [Member] \| January 2024 Warrants [Member]
Warrant Liability			1.45
Measurement Input, Price Volatility [Member] \| Series C Warrants [Member]
Warrant Liability			1.41
Measurement Input, Price Volatility [Member] \| Series D Warrants [Member]
Warrant Liability			1.32
Measurement Input, Price Volatility [Member] \| Placement Agents Warrants [Member]
Warrant Liability			1.41