Net Loss Per Share (Tables)

6 Months Ended

Jun. 30, 2020

Earnings Per Share [Abstract]

Schedule of net loss per share

	Six months ended June 30,
	2020		2019
Options to purchase common shares		30,500,000		32,750,000
Warrants to purchase common shares		3,500,000		950,000
Unvested restricted stock agreements		31,250		68,750
Convertible preferred stock		48,174		44,632
Total potentially dilutive securities		34,079,424		33,813,382