Consolidated Statements of Operations - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
REVENUE:
Total revenue	$ 861	$ 18,532
OPERATING EXPENSES:
Research and development	(57,893)	(57,279)
General and administrative	(38,088)	(21,238)
Impairment of goodwill	(18,057)	0
Restructuring expense	(2,416)	0
Total operating expenses	(116,454)	(78,517)
Net loss from operations	(115,593)	(59,985)
OTHER INCOME (EXPENSE), NET:
Gain on extinguishment of PPP Loan	0	1,827
Interest income, net	252	22
(Loss) gain on disposal of fixed assets, net	(7)	28
Other income (expense), net	702	(52)
Total other income, net	947	1,825
Loss before income taxes	(114,646)	(58,160)
Income tax provision	0	0
Net loss	(114,646)	(58,160)
Net loss attributable to common stockholders, diluted	$ (114,646)	$ (58,160)
Net loss per share attributable to common stockholders, basic	$ (2.40)	$ (1.48)
Net loss per share attributable to common stockholders, diluted	$ (2.40)	$ (1.48)
Weighted Average Number of Shares Outstanding, Basic	47,691,632	39,202,086
Weighted Average Number of Shares Outstanding, Diluted	47,691,632	39,202,086
Collaboration Revenue
REVENUE:
Total revenue	$ 861	$ 18,532