Warrant Liabilities (Tables)

9 Months Ended

Sep. 30, 2017

Warrant Liabilities [Abstract]

Schedule of Weighted-average Assumptions

The following reflects the weighted-average assumptions for each of the nine-month periods indicated:

	Nine Months Ended September 30,
	2017			2016
Risk-free interest rate		1.31	%		0.52	%
Expected dividend yield		0	%		0	%
Expected lives		0.8			0.8
Expected volatility		120.8	%		131.3	%
Warrants classified as liabilities (in shares)		2,834,246			4,761,905