Net Loss Per Common Share - Basic and Diluted (Details Narrative) - shares	6 Months Ended
Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2017
Stock options, outstanding	30,350,000	20,750,000	32,250,000
Warrants, outstanding	45,090,000	47,509,172
Series B Convertible Redeemable Preferred Stock
Anti-dilutive preferred stock, shares outstanding	425,000	425,000
Redeemable convertible preferred stock, outstanding	850
Series C Redeemable Convertible Preferred Stock
Redeemable convertible preferred stock, outstanding	4,213	4,213

Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.

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