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Consolidated Statements of Operations and Comprehensive Loss - USD ($)
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Operating expenses    
Research and development $ 27,080,000 $ 23,735,000
General and administrative 12,700,000 13,132,000
Goodwill impairment 48,648,000 0
Total operating expenses 88,428,000 36,867,000
Loss from operations (88,428,000) (36,867,000)
Other income, net 462,000 7,000
Loss before income tax benefit (87,966,000) (36,860,000)
Income tax benefit 0 2,354,000
Net loss and comprehensive loss $ (87,966,000) $ (34,506,000)
Net loss per share, basic $ (6.16) $ (2.33)
Net loss per share, diluted $ (6.16) $ (2.33)
Weighted-average common shares outstanding, basic 14,285,254 14,819,582
Weighted-average common shares outstanding, diluted 14,285,254 14,819,582