Consolidated Statements of Operations - USD ($)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Operating expenses:
Research and development	$ 8,499,414	$ 9,427,667
Intangible asset impairment charge	8,639,000	0
General and administrative	7,445,277	6,444,109
Depreciation	93,416	103,168
Loss from operations	(24,677,107)	(15,974,944)
Other income:
Interest income	137,487	114,257
Loss before income taxes	(24,539,620)	(15,860,687)
Income tax benefit	443,893	1,675,381
Net loss	(24,095,727)	(14,185,306)
Deemed dividend arising from warrant exchange	0	(1,950,378)
Net loss applicable to common stockholders	$ (24,095,727)	$ (16,135,684)
Share information:
Net loss per share of common stock, basic and diluted (in dollars per share)	$ (0.25)	$ (0.30)
Weighted average shares outstanding, basic and diluted (in dollars per share)	$ 97,626,748	$ 53,831,973