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Consolidated Statements of Operations - USD ($)
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Revenues:    
Total revenue $ 2,930,303 $ 2,403,831
Costs and expenses:    
Costs of research and development revenue 2,123,193 1,944,438
Research and development 4,501,365 8,392,370
General and administrative 6,421,505 6,697,617
Foreign currency exchange loss 49,918 96,893
Total costs and expenses 13,095,981 17,131,318
Loss from operations (10,165,678) (14,727,487)
Other income:    
Interest income 180,420 51,704
Other income 250,000 1,605,532
Total other income 430,420 1,657,236
Net loss $ (9,735,258) $ (13,070,251)
Basic and diluted net loss per common share (in dollars per share) $ (0.34) $ (0.47)
Basic and diluted weighted-average common shares outstanding (in shares) 28,364,482 27,838,047
Research and Development [Member]    
Revenues:    
Total revenue $ 2,683,244 $ 2,403,831
License [Member]    
Revenues:    
Total revenue $ 247,059 $ 0