| Cover | Mar. 18, 2021 |
| Cover [Abstract] | |
| Document Type | 8-K |
| Amendment Flag | false |
| Document Period End Date | Mar. 18, 2021 |
| Entity File Number | 001-36193 |
| Entity Registrant Name | TREVENA, INC. |
| Entity Central Index Key | 0001429560 |
| Entity Tax Identification Number | 26-1469215 |
| Entity Incorporation, State or Country Code | DE |
| Entity Address, Address Line One | 955 Chesterbrook Boulevard |
| Entity Address, Address Line Two | Suite 110 |
| Entity Address, City or Town | Chesterbrook |
| Entity Address, State or Province | PA |
| Entity Address, Postal Zip Code | 19087 |
| City Area Code | 610 |
| Local Phone Number | 354-8840 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Title of 12(b) Security | Common Stock, $0.001 par value |
| Trading Symbol | TRVN |
| Security Exchange Name | NASDAQ |
| Entity Emerging Growth Company | false |
