XML 14 R1.htm IDEA: XBRL DOCUMENT v3.23.1
Document and Entity Information - shares
3 Months Ended
Mar. 31, 2023
May 05, 2023
Cover [Abstract]    
Document Type 10-Q  
Document Quarterly Report true  
Document Transition Report false  
Amendment Flag false  
Document Period End Date Mar. 31, 2023  
Document Fiscal Year Focus 2023  
Document Fiscal Period Focus Q1  
Trading Symbol UBX  
Entity Registrant Name Unity Biotechnology, Inc.  
Entity Central Index Key 0001463361  
Current Fiscal Year End Date --12-31  
Entity Interactive Data Current Yes  
Entity Filer Category Non-accelerated Filer  
Entity Small Business true  
Entity Current Reporting Status Yes  
Entity Emerging Growth Company true  
Entity Ex Transition Period false  
Entity Common Stock, Shares Outstanding   14,365,038
Entity Shell Company false  
Entity File Number 001-38470  
Entity Tax Identification Number 26-4726035  
Entity Incorporation, State or Country Code DE  
Entity Address, Address Line One 285 East Grand Ave.  
Entity Address, City or Town South San Francisco  
Entity Address, State or Province CA  
Entity Address, Postal Zip Code 94080  
City Area Code 650  
Local Phone Number 416-1192  
Title of 12(b) Security Common Stock, par value $0.0001  
Security Exchange Name NASDAQ