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STATEMENTS OF OPERATIONS (Unaudited) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2022
Jun. 30, 2021
Jun. 30, 2022
Jun. 30, 2021
Costs and expenses:        
Research and development $ 1,485 $ 3,577 $ 3,664 $ 6,453
General and administrative 1,734 1,260 2,832 2,486
Total costs and expenses 3,219 4,837 6,496 8,939
Loss from operations (3,219) (4,837) (6,496) (8,939)
Interest and other income 72 3 79 5
Other loss     (2)  
Net loss $ (3,147) $ (4,834) $ (6,419) $ (8,934)
Net loss per share:        
Basic $ (0.22) $ (0.34) $ (0.45) $ (0.67)
Diluted $ (0.22) $ (0.34) $ (0.45) $ (0.67)
Weighted average shares outstanding:        
Basic 14,410,143 14,410,143 14,410,143 13,389,207
Diluted 14,410,143 14,410,143 14,410,143 13,389,207