Stock Option Plans and Warrants to Purchase Common Stock (Details 3) - USD ($)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Share-based compensation, Total	$ 376,339	$ 380,886
Research and development [Member]
Share-based compensation, Total	143,217	174,877
General and administrative [Member]
Share-based compensation, Total	$ 233,122	$ 206,009