Unaudited Condensed Consolidated Statements of Operations and Comprehensive Loss - USD ($)	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Income Statement [Abstract]
Grant revenue	$ 67,435	$ 24,315
Operating expenses:
Research and development	5,261,604	5,278,252
General and administrative	3,246,195	2,647,415
Total operating expenses	8,507,799	7,925,667
Loss from operations	(8,440,364)	(7,901,352)
Other income:
Other income	57,177	231,278
Interest income	7,185	15,499
Total other income	64,362	246,777
Net loss	$ (8,376,002)	$ (7,654,575)
Net loss per share, basic and diluted (in Dollars per share)	$ (0.33)	$ (0.33)
Weighted average common shares outstanding, basic and diluted (in Shares)	25,371,781	23,140,607
CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS
Net loss	$ (8,376,002)	$ (7,654,575)
Other comprehensive loss:
Foreign currency translation adjustments	47,234	(37,958)
Comprehensive loss	$ (8,328,768)	$ (7,692,533)