Condensed Consolidated Statements of Operations - USD ($)	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Income Statement [Abstract]
Revenues	$ 0	$ 0
Costs and expenses:
Research and development	4,311,134	3,498,655
General and administrative	2,941,334	2,532,808
Total operating expenses	7,252,468	6,031,463
Loss from operations	(7,252,468)	(6,031,463)
Other income (expense):
Interest expense	(2,209)	(2,054)
Change in fair value of contingent consideration	324,992	(30,000)
Loss before income taxes	(6,929,685)	(6,063,517)
Income tax benefit (expense)	0	0
Net loss and comprehensive loss	$ (6,929,685)	$ (6,063,517)
Weighted average common shares outstanding:
Basic (in shares)	76,228,899	52,160,742
Diluted (in shares)	76,228,899	52,160,742
Net loss per common share: (see Note 10)
Basic (in dollars per share)	$ (0.09)	$ (0.12)
Diluted (in dollars per share)	$ (0.09)	$ (0.12)