Quarterly report pursuant to Section 13 or 15(d)

Summary of Significant Accounting Policies - Schedule of Antidilutive Securities (Details)

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Summary of Significant Accounting Policies - Schedule of Antidilutive Securities (Details) - shares
3 Months Ended
Mar. 31, 2019
Mar. 31, 2018
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]    
Anti-dilutive earnings per share, amount 48,858,000 32,301,000
Stock Options [Member]    
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]    
Anti-dilutive earnings per share, amount 16,572,000 11,614,000
Preferred Stock and Accrued Dividend Upon Conversion [Member]    
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]    
Anti-dilutive earnings per share, amount 26,487,000 14,729,000
Warrants [Member]    
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]    
Anti-dilutive earnings per share, amount 5,799,000 5,958,000