XML 12 R1.htm IDEA: XBRL DOCUMENT v3.23.2
Cover - shares
 6 Months Ended
Jun. 30, 2023
Jul. 27, 2023
Cover [Abstract]    
Document Type 10-Q  
Document Quarterly Report true  
Document Period End Date Jun. 30, 2023  
Document Transition Report false  
Entity File Number 001-38067  
Entity Registrant Name Verona Pharma plc  
Entity Incorporation, State or Country Code X0  
Entity Tax Identification Number 98-1489389  
Entity Address, Address Line One 3 More London Riverside  
Entity Address, City or Town London  
Entity Address, Postal Zip Code SE1 2RE  
Entity Address, Country GB  
Country Region 44  
City Area Code 203  
Local Phone Number 283 4200  
Title of 12(b) Security Ordinary shares, nominal value £0.05 per share*  
Trading Symbol VRNA  
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   635,875,302
Amendment Flag false  
Document Fiscal Year Focus 2023  
Current Fiscal Year End Date --12-31  
Document Fiscal Period Focus Q2  
Entity Central Index Key 0001657312