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Cover
Jul. 15, 2021
Cover [Abstract]  
Document Type 8-K
Document Period End Date Jul. 15, 2021
Entity Registrant Name EXICURE, INC.
Entity Central Index Key 0001698530
Amendment Flag false
Entity Incorporation, State or Country Code DE
Entity File Number 001-39011
Entity Tax Identification Number 81-5333008
Entity Address, Address Line One 2430 N. Halsted St.
Entity Address, City or Town Chicago
Entity Address, State or Province IL
Entity Address, Postal Zip Code 60614
City Area Code 847
Local Phone Number 673-1700
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 XCUR
Security Exchange Name NASDAQ
Entity Emerging Growth Company true
Entity Ex Transition Period true