Loss Per Share - Schedule of Antidilutive Securities Excluded from Computation of Diluted Earnings Per Share (Details) - shares |
12 Months Ended | ||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Dec. 31, 2018 |
Dec. 31, 2017 |
||||||||||||||
Antidilutive securities excluded from computation of diluted weighted shares outstanding | 22,899,321 | 15,239,173 | |||||||||||||
Stock Options [Member] | |||||||||||||||
Antidilutive securities excluded from computation of diluted weighted shares outstanding | 3,327,140 | ||||||||||||||
Unit Purchase Options as to Shares of Common Stock [Member] | |||||||||||||||
Antidilutive securities excluded from computation of diluted weighted shares outstanding | [1] | 53,000 | 53,000 | ||||||||||||
Unit Purchase Options - "UPO-Z" - as to Shares Underlying Series Z Warrants [Member] | |||||||||||||||
Antidilutive securities excluded from computation of diluted weighted shares outstanding | [1] | 53,000 | |||||||||||||
Unit Purchase Options as to Shares Underlying Series W Warrants [Member] | |||||||||||||||
Antidilutive securities excluded from computation of diluted weighted shares outstanding | [1] | 53,000 | |||||||||||||
Series Z Warrants [Member] | |||||||||||||||
Antidilutive securities excluded from computation of diluted weighted shares outstanding | [2] | 16,815,039 | |||||||||||||
Series W Warrants [Member] | |||||||||||||||
Antidilutive securities excluded from computation of diluted weighted shares outstanding | [2] | 381,818 | 10,567,845 | ||||||||||||
Series S Warrants [Member] | |||||||||||||||
Antidilutive securities excluded from computation of diluted weighted shares outstanding | [3] | 1,199,383 | 1,473,640 | ||||||||||||
Series B Convertible Preferred Stock [Member] | |||||||||||||||
Antidilutive securities excluded from computation of diluted weighted shares outstanding | [4] | 1,069,941 | |||||||||||||
Series A-1 Convertible Preferred Stock [Member] | |||||||||||||||
Antidilutive securities excluded from computation of diluted weighted shares outstanding | [5] | 357,259 | |||||||||||||
Series A-1 Warrants [Member] | |||||||||||||||
Antidilutive securities excluded from computation of diluted weighted shares outstanding | [5] | 279,837 | |||||||||||||
Series A Convertible Preferred Stock [Member] | |||||||||||||||
Antidilutive securities excluded from computation of diluted weighted shares outstanding | [6] | 249,667 | |||||||||||||
Series A Warrants [Member] | |||||||||||||||
Antidilutive securities excluded from computation of diluted weighted shares outstanding | [6] | 268,001 | |||||||||||||
Stock Options [Member] | |||||||||||||||
Antidilutive securities excluded from computation of diluted weighted shares outstanding | 1,936,924 | ||||||||||||||
|