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Statements of Operations and Comprehensive Loss - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Operating expenses:    
Research and development $ 4,301 $ 3,039
General and administrative 5,649 2,632
Total operating expenses 9,950 5,671
Loss from operations (9,950) (5,671)
Interest income (expense), net 57 (834)
Other income, net 4 119
Gain on loan extinguishment 62
Total other income (expenses), net 61 (653)
Net loss (9,889) (6,324)
Other comprehensive income:    
Unrealized gain on marketable securities 17
Comprehensive loss $ (9,872) $ (6,324)
Net loss per share, basic and diluted $ (1.09) $ (1.21)
Weighted-average shares of common stock outstanding, basic and diluted 9,051,726 5,217,000