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

Note 8 - Common Stock Warrant Liabilities - Schedule of Warrants under Monte Carlo Simulation and Black-Scholes Model (Details)	Dec. 31, 2024	May 01, 2024	Jan. 05, 2024	Dec. 31, 2023
Measurement Input, Share Price [Member] \| October 2022 Warrants [Member]
Warrant Liability	2	4.76		12
Measurement Input, Share Price [Member] \| January 2023 Warrants [Member]
Warrant Liability			14.25	12
Measurement Input, Risk Free Interest Rate [Member] \| October 2022 Warrants [Member]
Warrant Liability	0.0427	0.0479		0.0384
Measurement Input, Risk Free Interest Rate [Member] \| January 2023 Warrants [Member]
Warrant Liability			0.044	0.0423
Measurement Input, Expected Dividend Rate [Member] \| October 2022 Warrants [Member]
Warrant Liability	0	0		0
Measurement Input, Expected Dividend Rate [Member] \| January 2023 Warrants [Member]
Warrant Liability			0	0
Measurement Input, Expected Term [Member] \| October 2022 Warrants [Member]
Warrant Liability	2.78	3.4		3.78
Measurement Input, Expected Term [Member] \| January 2023 Warrants [Member]
Warrant Liability			2.1	2.1
Measurement Input, Price Volatility [Member] \| October 2022 Warrants [Member]
Warrant Liability	1.55	1.60		1.48
Measurement Input, Price Volatility [Member] \| January 2023 Warrants [Member]
Warrant Liability			1.85	1.75