Document And Entity Information - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Mar. 26, 2024
Document Information [Line Items]
Document Type	10-K
Document Annual Report	true
Document Period End Date	Dec. 31, 2023
Document Transition Report	false
Entity File Number	001-37942
Entity Registrant Name	CervoMed Inc.
Entity Incorporation, State or Country Code	DE
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
Title of 12(b) Security	Common Stock, par value $0.001 per share
Trading Symbol	CRVO
Security Exchange Name	NASDAQ
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Non-accelerated Filer
Entity Small Business	true
Entity Emerging Growth Company	false
ICFR Auditor Attestation Flag	false
Document Financial Statement Error Correction [Flag]	false
Entity Shell Company	false
Entity Public Float	$ 6.8
Entity Common Stock, Shares Outstanding (in shares)		6,170,479
Auditor Firm ID	49
Auditor Name	RSM US LLP
Auditor Location	Boston, Massachusetts
Entity Central Index Key	0001053691
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2023
Document Fiscal Period Focus	FY
Amendment Flag	false