v3.25.1
Document and Entity Information - shares
 3 Months Ended
Mar. 31, 2025
May 12, 2025
Document and Entity Information    
Document Type 10-Q  
Document Quarterly Report true  
Document Period End Date Mar. 31, 2025  
Document Transition Report false  
Securities Act File Number 001-36177  
Entity Registrant Name GlycoMimetics, Inc.  
Entity Incorporation, State or Country Code DE  
Entity Tax Identification Number 06-1686563  
Entity Address, Address Line One P.O. Box 65  
Entity Address, City or Town Monrovia  
Entity Address, State or Province MD  
Entity Address, Postal Zip Code 21770  
City Area Code 240  
Local Phone Number 243-1201  
Title of 12(b) Security Common Stock, $0.001 par value  
Trading Symbol GLYC  
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   64,532,091
Entity Central Index Key 0001253689  
Current Fiscal Year End Date --12-31  
Document Fiscal Year Focus 2025  
Document Fiscal Period Focus Q1  
Amendment Flag false