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Consolidated Statements of Operations - USD ($)
 12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Income Statement [Abstract]    
Technology development and licensing revenue $ 500,000 $ 500,000
Operating expenses:    
Research and development 10,619,287 11,344,819
General and administrative 10,887,903 7,641,593
Total operating expenses 21,507,190 18,986,412
Loss from operations (21,007,190) (18,486,412)
Other income (expense):    
Gain (loss) from change in earn-out milestone liability 1,622,000 (1,300,291)
Impairment of goodwill and in-process research and development (1,976,101) (2,370,257)
Loss on debt extinguishment (234,419)
Investment income, net 10,996 119,907
Interest expense (569,881) (1,292,338)
Other income 1,899 7
Total other (expense) income, net (1,145,506) (4,842,972)
Loss before income tax benefit (22,152,696) (23,329,384)
Income tax benefit 1,383,446 1,845,823
Net loss $ (20,769,250) $ (21,483,561)
Net loss per common share - basic and diluted $ (3.83) $ (10.08)
Weighted average common shares outstanding - basic and diluted 5,426,953 2,130,750