Consolidated Statements of Operations (Unaudited) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Operating expenses:
Research and development	$ 2,173,183	$ 1,518,381	$ 3,707,650	$ 3,218,226
General and administrative	1,458,257	1,068,452	2,852,065	2,269,180
Depreciation	27,021	34,390	54,041	52,662
Loss from operations	3,658,461	2,621,223	6,613,756	5,540,068
Other income:
Interest income	(25,913)	(16,921)	(60,013)	(37,605)
Loss from operations before income tax benefit	(3,632,548)	(2,604,302)	(6,553,743)	(5,502,463)
Income tax benefit	(507,325)	(108,904)	(869,705)	(259,256)
Net loss	(3,125,223)	(2,495,398)	(5,684,038)	(5,243,207)
Deemed dividend arising from warrant exchange	(1,950,378)		(1,950,378)
Net loss attributable to common stockholders	$ (5,075,601)	$ (2,495,398)	$ (7,634,416)	$ (5,243,207)
Per share information:
Net loss per share of common stock, basic and diluted (in dollars per share)	$ (0.10)	$ (0.63)	$ (0.18)	$ (1.43)
Weighted average shares outstanding, basic and diluted (in dollars per share)	$ 51,978,286	$ 3,940,684	$ 43,242,891	$ 3,658,457