| Document And Entity Information | Dec. 10, 2024 |
| Document Information [Line Items] | |
| Entity, Registrant Name | CervoMed Inc. |
| Document, Type | 8-K |
| Document, Period End Date | Dec. 10, 2024 |
| Entity, Incorporation, State or Country Code | DE |
| Entity, File Number | 001-37942 |
| Entity, Tax Identification Number | 30-0645032 |
| Entity, Address, Address Line One | 20 Park Plaza, Suite 424 |
| Entity, Address, City or Town | Boston |
| Entity, Address, State or Province | MA |
| Entity, Address, Postal Zip Code | 02116 |
| City Area Code | 617 |
| Local Phone Number | 744-4400 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Title of 12(b) Security | Common Stock |
| Trading Symbol | CRVO |
| Security Exchange Name | NASDAQ |
| Entity, Emerging Growth Company | false |
| Amendment Flag | false |
| Entity, Central Index Key | 0001053691 |
