Document and Entity Information
Sep. 29, 2022
Cover [Abstract]  
Document Type 8-K
Amendment Flag false
Document Period End Date Sep. 29, 2022
Entity Registrant Name GALECTO, INC.
Entity Central Index Key 0001800315
Entity Emerging Growth Company true
Entity Ex Transition Period false
Entity File Number 001-39655
Entity Incorporation, State or Country Code DE
Entity Tax Identification Number 37-1957007
Entity Address, Address Line One 75 State Street
Entity Address, Address Line Two Suite 100
Entity Address, City or Town Boston
Entity Address, State or Province MA
Entity Address, Postal Zip Code 02109
City Area Code +45
Local Phone Number 70 70 52 10
Title of 12(b) Security Common Stock, $0.00001 par value per share
Trading Symbol GLTO
Security Exchange Name NASDAQ
Written Communications false
Soliciting Material false
Pre-commencement Tender Offer false
Pre-commencement Issuer Tender Offer false