v3.26.3
Cover
Nov. 10, 2026
Cover [Abstract]  
Document Type 8-K
Amendment Flag false
Document Period End Date Nov. 10, 2026
Entity File Number 001-43510
Entity Registrant Name City Therapeutics, Inc.
Entity Central Index Key 0002143850
Entity Tax Identification Number 93-2762122
Entity Incorporation, State or Country Code DE
Entity Address, Address Line One 399 Binney Street
Entity Address, City or Town Cambridge
Entity Address, State or Province MA
Entity Address, Postal Zip Code 02142
City Area Code 857
Local Phone Number 357-2024
Written Communications false
Soliciting Material false
Pre-commencement Tender Offer false
Pre-commencement Issuer Tender Offer false
Title of 12(b) Security Common Stock, par value $0.0001 per share
Trading Symbol CTY
Security Exchange Name NASDAQ
Entity Emerging Growth Company true
Elected Not To Use the Extended Transition Period false