Net Income (Loss) Per Common Share - Basic and Diluted (Details Narrative) - shares	6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018
Series B Convertible Redeemable Preferred Stock
Stock equivalents excluded from the computation of diluted net loss per common share	850	850
Series C Redeemable Convertible Preferred Stock
Stock equivalents excluded from the computation of diluted net loss per common share	4,213	4,213
Stock Options
Stock equivalents excluded from the computation of diluted net loss per common share	23,488,000	30,350,000
Warrants
Stock equivalents excluded from the computation of diluted net loss per common share	20,090,000	45,090,000