Summary of Significant Accounting Policies (Tables)

6 Months Ended

Jun. 30, 2017

Accounting Policies [Abstract]

Schedule of Anti-Dilutive Securities Excluded from Diluted Loss Per Share

The following table sets forth the anti-dilutive securities excluded from diluted loss per share:

	June 30,
	2017		2016
Anti-dilutive securities excluded from diluted loss per share:
Stock options		5,275,543		5,186,927
Warrants		—		1,676,747
Shares issuable upon conversion of convertible promissory    notes including accrued interest		8,816,772		7,527,441
Total		14,092,315		14,391,115

Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis

The following sets forth the classes of assets and liabilities measured at fair value on a recurring basis at June 30, 2017 and December 31, 2016 using the levels defined above:

Available for sale securities	Level 1: Quoted Prices in Active Markets for Identical Assets		Level 2: Significant Other Observable Inputs		Level 3: Significant Unobservable Inputs		Total
At June 30, 2017:	$	—	$	480,000	$	—	$	480,000
At December 31, 2016:	$	—	$	84,000	$	—	$	84,000