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Statements of Operations - USD ($)
 3 Months Ended 6 Months Ended
Jun. 30, 2021
Jun. 30, 2020
Jun. 30, 2021
Jun. 30, 2020
Operating expenses:        
Research and development $ 1,824,502 $ 856,478 $ 4,214,085 $ 922,924
General and administrative 709,648 1,687,151 1,549,275 2,203,867
Total operating expenses 2,534,150 2,543,629 5,763,360 3,126,791
Operating loss (2,534,150) (2,543,629) (5,763,360) (3,126,791)
Other income (expense):        
Change in fair value of derivative liability       (26,500)
Interest income (expense), net 2,134 25,878 2,331 36,512
Grant income 7,414 208,261 36,754 365,699
Total other income (expense) 9,548 234,139 39,085 375,711
Loss before income taxes (2,524,602) (2,309,490) (5,724,275) (2,751,080)
Income tax expense (benefit)     0.0 0.0
Net loss $ (2,524,602) $ (2,309,490) $ (5,724,275) $ (2,751,080)
Basic and diluted loss per common share $ (0.34) $ (0.34) $ (0.80) $ (0.48)
Weighted average number of common shares outstanding, basic and diluted 7,366,654 6,860,847 7,144,870 5,730,158