| Document And Entity Information | Oct. 17, 2023 |
| Cover [Abstract] | |
| Document Type | 8-K |
| Amendment Flag | false |
| Document Period End Date | Oct. 17, 2023 |
| Entity Registrant Name | Ovid Therapeutics Inc. |
| Entity Central Index Key | 0001636651 |
| Entity Emerging Growth Company | false |
| Securities Act File Number | 001-38085 |
| Entity Incorporation, State or Country Code | DE |
| Entity Tax Identification Number | 46-5270895 |
| Entity Address, Address Line One | 441 Ninth Avenue |
| Entity Address, Address Line Two | 14th Floor |
| Entity Address, City or Town | New York |
| Entity Address, State or Province | NY |
| Entity Address, Postal Zip Code | 10001 |
| City Area Code | 646 |
| Local Phone Number | 661-7661 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Title of 12(b) Security | Common Stock, par value $0.001 per share |
| Trading Symbol | OVID |
| Security Exchange Name | NASDAQ |
