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STATEMENTS OF OPERATIONS (Unaudited) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended
Sep. 30, 2020
Sep. 30, 2019
Sep. 30, 2020
Sep. 30, 2019
Costs and expenses:        
Research and development $ 1,051 $ 347 $ 1,788 $ 1,449
General and administrative 939 900 2,852 3,087
Total costs and expenses 1,990 1,247 4,640 4,536
Loss from operations (1,990) (1,247) (4,640) (4,536)
Interest and other income 1 50 27 136
Interest expense (2) (1) (9) (7)
Loss before income taxes (1,991) (1,198) (4,622) (4,407)
Income tax benefit   42 9 151
Net loss $ (1,991) $ (1,156) $ (4,613) $ (4,256)
Net loss per share:        
Basic and diluted $ (0.33) $ (0.76) $ (1.46) $ (3.46)
Weighted average shares outstanding:        
Basic and diluted 6,044,315 1,521,259 3,154,680 1,229,289