Cover - USD ($)	12 Months Ended
Cover - USD ($)	Dec. 31, 2025	Mar. 10, 2026	Jun. 30, 2025
Document Information [Line Items]
Document Type	10-K
Document Annual Report	true
Document Period End Date	Dec. 31, 2025
Current Fiscal Year End Date	--12-31
Document Transition Report	false
Entity File Number	001-37524
Entity Registrant Name	vTv Therapeutics Inc.
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	47-3916571
Entity Address, Address Line One	3980 Premier Dr
Entity Address, Address Line Two	Suite 110
Entity Address, City or Town	High Point
Entity Address, State or Province	NC
Entity Address, Postal Zip Code	27265
City Area Code	336
Local Phone Number	841-0300
Title of 12(b) Security	Class A Common Stock, par value $0.01 per share
Trading Symbol	VTVT
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			$ 22,364,235
Documents Incorporated by Reference	Portions of the registrant’s Definitive Proxy Statement relating to its 2026 Annual Meeting of Stockholders to be filed within 120 days after December 31, 2025, are incorporated by reference into Part III of this Annual Report on Form 10-K where indicated.
Entity Central Index Key	0001641489
Document Fiscal Year Focus	2025
Document Fiscal Period Focus	FY
Amendment Flag	false
Class A Common Stock
Document Information [Line Items]
Entity Common Stock, Shares Outstanding		3,938,654
Class B Common Stock
Document Information [Line Items]
Entity Common Stock, Shares Outstanding		241