Avenue Therapeutics, Inc. Annual report pursuant to Section 13 and 15(d)

Note 8 - Common Stock Warrant Liabilities - Schedule of Warrants under Monte Carlo Simulation and Black-Scholes Model (Details)	Dec. 31, 2023	Jan. 31, 2023	Dec. 31, 2022
Measurement Input, Share Price [Member] \| January 2023 Warrants [Member]
Warrant Liability	0.16	1.38
Measurement Input, Share Price [Member] \| October 2022 Warrants [Member]
Warrant Liability	0.16		1.16
Measurement Input, Risk Free Interest Rate [Member] \| January 2023 Warrants [Member]
Warrant Liability	0.0423	0.039
Measurement Input, Risk Free Interest Rate [Member] \| October 2022 Warrants [Member]
Warrant Liability	0.0384		0.0402
Measurement Input, Expected Dividend Rate [Member] \| January 2023 Warrants [Member]
Warrant Liability	0	0
Measurement Input, Expected Dividend Rate [Member] \| October 2022 Warrants [Member]
Warrant Liability	0		0
Measurement Input, Expected Term [Member] \| January 2023 Warrants [Member]
Warrant Liability	2.1	3
Measurement Input, Expected Term [Member] \| October 2022 Warrants [Member]
Warrant Liability	3.78		4.78
Measurement Input, Price Volatility [Member] \| January 2023 Warrants [Member]
Warrant Liability	1.75	1.60
Measurement Input, Price Volatility [Member] \| October 2022 Warrants [Member]
Warrant Liability	1.48		0.93