Consolidated Statements of Operations and Comprehensive Loss - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Revenue	$ 1,120	$ 14,580
Operating expenses
Research and development (includes related party amounts of $200 and $2,461, respectively)	19,670	15,008
General and administrative	18,511	2,121
Impairment of acquired contract intangible asset	74,156
Total operating expenses	112,337	17,129
Loss from operations	(111,217)	(2,549)
Other income (expense)
Change in fair value of convertible promissory notes	1,585	(153)
Gain upon extinguishment of debt	196
Interest income	13	41
Interest expense (includes related party amounts of $600 and $734, respectively)	(665)	(815)
Total other income (expense), net	1,129	(927)
Loss before income tax expense	(110,088)	(3,476)
Income tax expense	(2)	(2)
Net and comprehensive loss	(110,090)	(3,478)
Cumulative dividends on convertible preferred stock	(647)	(987)
Net and comprehensive loss attributable to common stockholders	$ (110,737)	$ (4,465)
Net and comprehensive loss per share attributable to common stockholders, basic and diluted	$ (12.41)	$ (1.76)
Weighted average number of common shares outstanding used in computing net and comprehensive loss per share attributable to common stockholders, basic and diluted	8,923,369	2,542,358
License [Member]
Revenue	$ 1,000	$ 14,000
Grant [Member]
Revenue	$ 120	$ 580