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STATEMENTS OF OPERATIONS (Unaudited) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended
Sep. 30, 2022
Sep. 30, 2021
Sep. 30, 2022
Sep. 30, 2021
Costs and expenses:        
Research and development $ 1,024 $ 3,438 $ 4,688 $ 9,891
General and administrative 1,528 1,278 4,360 3,764
Total costs and expenses 2,552 4,716 9,048 13,655
Loss from operations (2,552) (4,716) (9,048) (13,655)
Interest and other income 222 4 301 9
Other loss (3)   (5)  
Net loss $ (2,333) $ (4,712) $ (8,752) $ (13,646)
Net loss per share:        
Basic $ (0.16) $ (0.33) $ (0.61) $ (0.99)
Diluted $ (0.16) $ (0.33) $ (0.61) $ (0.99)
Weighted average shares outstanding:        
Basic 14,410,143 14,410,143 14,410,143 13,733,259
Diluted 14,410,143 14,410,143 14,410,143 13,733,259