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Consolidated Statements of Operations and Comprehensive Loss - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Operating expenses:    
Research and development $ 2,778 $ 6,546
Acquired in-process research and development 8,210  
General and administrative 8,640 8,752
Total operating expenses 19,628 15,298
Loss from operations (19,628) (15,298)
Other income (expense)    
Interest income   14
Financing expense (2,191)  
Change in fair value of warrant liability (7,935)  
Other expense (83)  
Total other income 5,661 14
Loss before income taxes (13,967) (15,284)
Provision for income taxes 0  
Net loss (13,967) (15,284)
Other comprehensive loss, net of tax (4) (10)
Comprehensive loss $ (13,971) $ (15,294)
Loss per share:    
Net loss per share, basic $ (5.43) $ (19.81)
Net loss per share, diluted $ (5.43) $ (19.81)
Weighted average shares of common stock outstanding:    
Basic 2,573,624 771,422
Diluted 2,573,624 771,422