Basis of Presentation and Summary of Significant Accounting Policies - Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share (Details) - shares	6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016
Potential shares excluded from diluted net loss per share	10,219,451	15,932,481
Options to Purchase Common Stock [Member]
Potential shares excluded from diluted net loss per share	5,625,000	6,044,000
Convertible Preferred Stock [Member]
Potential shares excluded from diluted net loss per share	3,143,530	10,082,560
Convertible Debentures [Member]
Potential shares excluded from diluted net loss per share	553,000	553,000
Warrants to Purchase Common Stock [Member]
Potential shares excluded from diluted net loss per share	1,405,000	1,410,000
Common Stock Subject to Repurchase [Member]
Potential shares excluded from diluted net loss per share	(507,079)	(2,157,079)