v3.25.2
Cover - shares
 6 Months Ended
Jun. 30, 2025
Aug. 07, 2025
Cover [Abstract]    
Entity Registrant Name VOLITIONRX LIMITED  
Entity Central Index Key 0000093314  
Document Type 10-Q/A  
Amendment Flag true  
Current Fiscal Year End Date --12-31  
Entity Small Business true  
Entity Shell Company false  
Entity Emerging Growth Company false  
Entity Current Reporting Status Yes  
Document Period End Date Jun. 30, 2025  
Entity Filer Category Non-accelerated Filer  
Document Fiscal Period Focus Q2  
Document Fiscal Year Focus 2025  
Entity Common Stock Shares Outstanding   107,595,421
Entity File Number 001-36833  
Entity Incorporation State Country Code DE  
Entity Tax Identification Number 91-1949078  
Entity Address Address Line 1 1489 West Warm Springs Road  
Entity Address Address Line 2 Suite 110  
Entity Address City Or Town Henderson  
Entity Address State Or Province NV  
Entity Address Postal Zip Code 89014  
City Area Code 646  
Local Phone Number 650–1351  
Security 12b Title Common Stock, par value $0.001 per share  
Trading Symbol VNRX  
Security Exchange Name NYSE  
Document Quarterly Report true  
Document Transition Report false  
Entity Interactive Data Current Yes  
Amendment Description This Amendment No. 1 on Form 10-Q/A (this “Amendment No. 1”) hereby amends the Quarterly Report on Form 10-Q of VolitionRx Limited (the “Company”) for the quarterly period ended June 30, 2025 (the “Original Form 10-Q”), originally filed with the Securities and Exchange Commission (“SEC”) on August 14, 2025. This Amendment No. 1 is being filed solely to include Exhibits 5.1 and 10.2 to the Form 10-Q/A, which were inadvertently omitted in the Original Form 10-Q.