v3.26.1
Document and Entity Information - shares
 3 Months Ended
Mar. 31, 2026
May 07, 2026
Cover [Abstract]    
Document Type 10-Q  
Document Quarterly Report true  
Document Transition Report false  
Amendment Flag false  
Document Period End Date Mar. 31, 2026  
Document Fiscal Year Focus 2026  
Document Fiscal Period Focus Q1  
Current Fiscal Year End Date --12-31  
Entity Registrant Name AN2 Therapeutics, Inc.  
Entity Central Index Key 0001880438  
Entity File Number 001-41331  
Entity Tax Identification Number 82-0606654  
Entity Incorporation, State or Country Code DE  
Entity Current Reporting Status Yes  
Entity Interactive Data Current Yes  
Entity Shell Company false  
Entity Filer Category Non-accelerated Filer  
Entity Small Business true  
Entity Emerging Growth Company true  
Entity Ex Transition Period false  
Entity Address, Address Line One 1300 El Camino Real  
Entity Address, Address Line Two Suite 100  
Entity Address, City or Town Menlo Park  
Entity Address, State or Province CA  
Entity Address, Postal Zip Code 94025  
City Area Code 650  
Local Phone Number 331-9090  
Title of 12(b) Security Common Stock, par value $0.00001 per share  
Trading Symbol ANTX  
Security Exchange Name NASDAQ  
Entity Common Stock, Shares Outstanding   36,016,161