Warrant Liabilities (Tables)

6 Months Ended

Jun. 30, 2015

Warrant Liabilities [Abstract]

Schedule of weighted-average assumptions

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

	Six Months Ended June 30,
	2015			2014
Risk-free interest rate		0.28	%		0.44	%
Expected dividend yield		0	%		0	%
Expected lives		1.09			1.96
Expected volatility		62.7	%		84.1	%
Warrants classified as liabilities (in shares)		6,371,854			6,984,716