| Cover | Oct. 05, 2020 |
| Cover [Abstract] | |
| Document Type | 8-K |
| Amendment Flag | false |
| Document Period End Date | Oct. 5, 2020 |
| Entity File Number | 001-38356 |
| Entity Registrant Name | VYNE Therapeutics Inc. |
| Entity Central Index Key | 0001566044 |
| Entity Tax Identification Number | 45-3757789 |
| Entity Incorporation, State or Country Code | DE |
| Entity Address, Address Line One | 520 U.S. Highway 22 |
| Entity Address, Address Line Two | 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 | 755-7936 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Title of 12(b) Security | Common Stock, $0.0001 par value |
| Trading Symbol | VYNE |
| Security Exchange Name | NASDAQ |
| Entity Emerging Growth Company | true |
| Elected Not To Use the Extended Transition Period | true |
