Stock Based Compensation (Details 4) - USD ($)	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Total stock-based compensation	$ 2,797,807	$ 76,882
Research and development [Member]
Total stock-based compensation	208,765	41,073
General and administrative [Member]
Total stock-based compensation	$ 2,589,042	$ 35,809