v3.26.1
Cover - shares
6 Months Ended
Jun. 30, 2026
Aug. 10, 2026
Cover [Abstract]    
Document Type 10-Q  
Amendment Flag false  
Document Quarterly Report true  
Document Transition Report false  
Document Period End Date Jun. 30, 2026  
Document Fiscal Period Focus Q2  
Document Fiscal Year Focus 2026  
Current Fiscal Year End Date --12-31  
Entity File Number 001-36856  
Entity Registrant Name HEPION PHARMACEUTICALS, INC.  
Entity Central Index Key 0001583771  
Entity Tax Identification Number 46-2783806  
Entity Incorporation, State or Country Code DE  
Entity Address, Address Line One 34 Shrewsbury Ave.  
Entity Address, Address Line Two Suite 1D  
Entity Address, City or Town Red Bank  
Entity Address, State or Province NJ  
Entity Address, Postal Zip Code 07701  
City Area Code (732)  
Local Phone Number 902-4000  
Title of 12(b) Security Common Stock, par value $0.0001 per share  
Trading Symbol HEPA  
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   90,219,317