Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Cash flows from operating activities:
Net loss before noncontrolling interest	$ (17,731)	$ (12,802)	$ (21,938)
Adjustments to reconcile net loss before noncontrolling interest to net cash used in operating activities:
(Gain) on disposal of property and equipment, net			(288)
Depreciation expense	89	94	39
Share-based compensation expense	2,356	1,009	1,518
Change in fair value of investments	(2,448)	(4,245)
Change in fair value of warrants, related party	(1,609)	270	(827)
Amortization of debt discount		380	532
Changes in assets and liabilities:
Accounts receivable	101	(153)	(5)
Prepaid expenses and other assets	(839)	(254)	732
Long-term deposits		444	(408)
Accounts payable and accrued expenses	1,828	(997)	(618)
Accreted interest on debt		(1,512)
Contract liabilities	(1,005)	(24)	(1,755)
Other liabilities	(50)	(210)
Net cash used in operating activities	(19,308)	(18,000)	(23,018)
Cash flows from investing activities:
Proceeds from sale of assets			312
Purchases of property and equipment			(70)
Net cash provided by investing activities			242
Cash flows from financing activities:
Proceeds from issuance of Class A Common Stock to a related party under the Letter Agreements		10,000	27,500
Proceeds from issuance of Class A Common Stock, net of offering costs	26,757	14,426	5,443
Proceeds from exercise of stock options	47
Proceeds from debt issuance	887	500	500
Repayment of notes payable	(715)	(5,456)	(10,573)
Net cash provided by financing activities	26,976	19,470	22,870
Net increase in cash, cash equivalents and restricted cash and cash equivalents	7,668	1,470	94
Total cash, cash equivalents and restricted cash and cash equivalents, beginning of year	5,747	4,277	4,183
Total cash, cash equivalents and restricted cash and cash equivalents, end of year	13,415	5,747	4,277
Supplemental cash flow information:
Cash paid for interest	11	623	1,295
Cash paid for income taxes	115		100
Non-cash activities:
Right-of-use assets obtained in exchange for lease obligations			548
Leasehold improvements obtained in exchange for lease obligations			384
Issuance of Letter Agreements and warrants to purchase vTv Therapeutics Inc. Class A Common Stock to a related party			992
Redeemable Noncontrolling Interest [Member]
Non-cash activities:
Change in redemption value of noncontrolling interest	$ (54,189)	$ 48,015	$ (13,405)