v3.25.1
Cover - shares
 3 Months Ended
Mar. 31, 2025
May 02, 2025
Cover [Abstract]    
Document Type 10-Q  
Amendment Flag false  
Document Quarterly Report true  
Document Transition Report false  
Document Period End Date Mar. 31, 2025  
Document Fiscal Period Focus Q1  
Document Fiscal Year Focus 2025  
Current Fiscal Year End Date --12-31  
Entity File Number 001-38538  
Entity Registrant Name electroCore, Inc.  
Entity Central Index Key 0001560258  
Entity Tax Identification Number 20-3454976  
Entity Incorporation, State or Country Code DE  
Entity Address, Address Line One 200 Forge Way  
Entity Address, Address Line Two Suite 205  
Entity Address, City or Town Rockaway  
Entity Address, State or Province NJ  
Entity Address, Postal Zip Code 07866  
City Area Code (973)  
Local Phone Number 290-0097  
Title of 12(b) Security Common Stock, par value $0.001 per share  
Trading Symbol ECOR  
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   7,420,618