Condensed Consolidated Statements of Operations and Comprehensive Loss (unaudited) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Income Statement [Abstract]
License revenue		$ 15,000,000		$ 15,000,000
Revenue, Product and Service [Extensible Enumeration]	us-gaap:LicenseMember	us-gaap:LicenseMember	us-gaap:LicenseMember	us-gaap:LicenseMember
Operating expenses
Research and development	$ 719,637	$ 3,548,572	$ 2,947,639	$ 5,377,614
General and administrative	4,051,724	2,195,515	6,188,314	4,481,406
Restructuring expense			1,238,270
Total operating expenses	4,771,361	5,744,087	10,374,223	9,859,020
(Loss) income from operations	(4,771,361)	9,255,913	(10,374,223)	5,140,980
Other income	360,754		1,518,842
Grant income				79,900
Interest income	2,672	20,119	5,707	136,489
Total other income	363,426	20,119	1,524,549	216,389
Net and comprehensive (loss) income	$ (4,407,935)	$ 9,276,032	$ (8,849,674)	$ 5,357,369
Net and comprehensive (loss) income per common share
Basic and diluted	$ (0.09)	$ 0.23	$ (0.19)	$ 0.13
Weighted average number of common shares used in computing net (loss) income per share attributable to common stockholders
Basic	47,372,581	40,588,004	47,327,701	40,588,004
Diluted	47,372,581	40,905,288	47,327,701	40,747,960