Net Loss Per Share - Schedule of Anti-Dilutive Securities Excluded From Computation of Diluted Earnings Per Share (Details) - shares	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Anti-dilutive common shares excluded from the computation of diluted earnings per share	50,851,655	44,687,540
Options to Purchase Common Stock [Member]
Anti-dilutive common shares excluded from the computation of diluted earnings per share	1,857,599	1,165,086
Series A Convertible Preferred Stock and Accumulated Dividends [Member]
Anti-dilutive common shares excluded from the computation of diluted earnings per share	42,497,068	41,743,654
Series B Convertible Preferred Stock [Member]
Anti-dilutive common shares excluded from the computation of diluted earnings per share	5,610,121
Restricted Stock Units [Member]
Anti-dilutive common shares excluded from the computation of diluted earnings per share	840,712	647,649
Warrants [Member]
Anti-dilutive common shares excluded from the computation of diluted earnings per share	46,155	1,131,151