Quarterly report pursuant to Section 13 or 15(d)

Document And Entity Information

v3.24.3
Document And Entity Information - shares
 9 Months Ended
Sep. 30, 2024
Nov. 11, 2024
Document Information [Line Items]    
Entity Central Index Key 0001644963  
Entity Registrant Name AVENUE THERAPEUTICS, INC.  
Amendment Flag false  
Current Fiscal Year End Date --12-31  
Document Fiscal Period Focus Q3  
Document Fiscal Year Focus 2024  
Document Type 10-Q  
Document Quarterly Report true  
Document Period End Date Sep. 30, 2024  
Document Transition Report false  
Entity File Number 001-38114  
Entity Incorporation, State or Country Code DE  
Entity Tax Identification Number 47-4113275  
Entity Address, Address Line One 1111 Kane Concourse, Suite 301  
Entity Address, City or Town Bay Harbor Islands  
Entity Address, State or Province FL  
Entity Address, Postal Zip Code 33154  
City Area Code 781  
Local Phone Number 652‑4500  
Title of 12(b) Security Common Stock  
Trading Symbol ATXI  
Security Exchange Name NASDAQ  
Entity Current Reporting Status Yes  
Entity Interactive Data Current Yes  
Entity Filer Category Non-accelerated Filer  
Entity Small Business true  
Entity Emerging Growth Company false  
Entity Shell Company false  
Entity Common Stock, Shares Outstanding   1,911,633