Description of Business and Basis of Presentation - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Jul. 29, 2015
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Accumulated deficit	$ (248,834)	$ (290,036)
Cash and cash equivalents	$ 13,415	$ 5,747
Class B Common Stock [Member]
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Common stock par value	$ 0.01	$ 0.01	$ 0.01
Class A Common Stock [Member]
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Common stock par value	$ 0.01	$ 0.01	$ 0.01
Class A Common Stock [Member] | LPC Purchase Agreement [Member]
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Common Stock, Capital Shares Reserved for Future Issuance	9,437,376
Class A Common Stock [Member] | Cantor Fitzgerald [Member]
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Remaining available stock value	$ 37,300
vTv Therapeutics LLC [Member]
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Percentage of non-voting economic interest of vTv Therapeutics Holdings LLC in vTv LLC	25.60%
Percentage of non-voting economic interest of vTv Therapeutics Inc in vTv LLC	74.40%
vTv Therapeutics LLC [Member] | Class B Common Stock [Member]
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Common stock par value	$ 0.01