v3.25.2
Document and Entity Information - shares
6 Months Ended
Jun. 30, 2025
Aug. 01, 2025
Cover [Abstract]    
Document Type 10-Q  
Amendment Flag false  
Document Period End Date Jun. 30, 2025  
Document Fiscal Year Focus 2025  
Document Fiscal Period Focus Q2  
Trading Symbol EVOK  
Entity Registrant Name EVOKE PHARMA, INC.  
Entity Central Index Key 0001403708  
Entity Current Reporting Status Yes  
Entity Interactive Data Current Yes  
Current Fiscal Year End Date --12-31  
Entity Filer Category Non-accelerated Filer  
Entity Small Business true  
Entity Emerging Growth Company false  
Title of 12(b) Security Common Stock, par value $0.0001 per share  
Security Exchange Name NASDAQ  
Entity File Number 001-36075  
Entity Tax Identification Number 20-8447886  
Entity Address, Address Line One 420 Stevens Avenue  
Entity Address, Address Line Two Suite 230  
Entity Address, City or Town Solana Beach  
Entity Address, State or Province CA  
Entity Address, Postal Zip Code 92075  
City Area Code 858  
Local Phone Number 345-1494  
Entity Incorporation, State or Country Code DE  
Entity Shell Company false  
Entity Common Stock, Shares Outstanding   1,558,465
Document Quarterly Report true  
Document Transition Report false