Quarterly report pursuant to Section 13 or 15(d)

Net Loss Per Share of Common Stock - Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share (Details)

v3.19.2
Net Loss Per Share of Common Stock - Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share (Details) - shares
6 Months Ended
Jun. 30, 2019
Jun. 30, 2018
Stock Option and Purchase Warrants [Member]    
Antidilutive securities excluded from computation of earnings per share 4,906,417 3,997,187
Senior Convertible Notes and Related Accrued Interest [Member]    
Antidilutive securities excluded from computation of earnings per share   122,537