Condensed Statements of Operations - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Operating expenses:
Research and development	$ 1,673,163	$ 2,068,783	$ 4,002,976	$ 3,747,207
General and administrative	1,077,830	711,224	2,160,190	1,429,792
Total operating expenses	2,750,993	2,780,007	6,163,166	5,176,999
Loss from operations	(2,750,993)	(2,780,007)	(6,163,166)	(5,176,999)
Interest and other income, net	631	1,522	568,808	23,000
Net loss	(2,750,362)	(2,778,485)	(5,594,358)	(5,153,999)
Less: cumulative preferred dividends earned in the period	(482,662)	(279,786)	(960,020)	(559,573)
Net loss available for distribution to common stockholders	$ (3,233,024)	$ (3,058,271)	$ (6,554,378)	$ (5,713,572)
Net loss per share, basic and diluted	$ (0.66)	$ (0.65)	$ (1.34)	$ (1.21)
Weighted average shares outstanding, basic and diluted	4,921,121	4,725,083	4,880,496	4,721,313