XML 12 R1.htm IDEA: XBRL DOCUMENT v3.21.2
Document and Entity Information - shares
 9 Months Ended
Sep. 30, 2021
Nov. 01, 2021
Cover [Abstract]    
Document Type 10-Q  
Amendment Flag false  
Document Period End Date Sep. 30, 2021  
Document Fiscal Year Focus 2021  
Document Fiscal Period Focus Q3  
Trading Symbol ECOR  
Entity Registrant Name electroCore, Inc.  
Entity Central Index Key 0001560258  
Current Fiscal Year End Date --12-31  
Entity Filer Category Non-accelerated Filer  
Entity Small Business true  
Entity Emerging Growth Company true  
Entity Ex Transition Period true  
Entity Current Reporting Status Yes  
Entity Shell Company false  
Entity Common Stock, Shares Outstanding   70,697,680
Entity File Number 001-38538  
Entity Tax Identification Number 20-3454976  
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  
Entity Interactive Data Current Yes  
Title of 12(b) Security Common Stock, par value $0.001 per share  
Security Exchange Name NASDAQ  
Entity Incorporation, State or Country Code DE  
Document Quarterly Report true  
Document Transition Report false