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Cover - shares
 6 Months Ended
Jun. 30, 2021
Aug. 06, 2021
Cover [Abstract]    
Document Type 10-Q  
Document Period End Date Jun. 30, 2021  
Document Quarterly Report true  
Document Transition Report false  
Entity File Number 001-38356  
Entity Registrant Name VYNE THERAPEUTICS INC.  
Entity Incorporation, State or Country Code DE  
Entity Tax Identification Number 45-3757789  
Entity Address, Address Line One 520 U.S. Highway 22, Suite 204  
Entity Address, City or Town Bridgewater  
Entity Address, State or Province NJ  
Entity Address, Postal Zip Code 08807  
City Area Code 800  
Local Phone Number 775-7936  
Title of 12(b) Security Common Stock, par value $0.0001  
Trading Symbol VYNE  
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 true  
Entity Shell Company false  
Entity Central Index Key 0001566044  
Current Fiscal Year End Date --12-31  
Document Fiscal Year Focus 2021  
Document Fiscal Period Focus Q2  
Amendment Flag false  
Entity Ex Transition Period true  
Entity Common Stock, Shares Outstanding   51,511,845