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Stockholders' Equity (Tables)

9 Months Ended

Sep. 30, 2015

The fair value of the 2010 Warrants at September 30, 2015 and December 31, 2014, consisted of the following (in thousands):


	September 30, 2015		December 31, 2014
2010 Warrants	$	2,424	$	10,485

Fair Value Assumptions of Warrants

The fair value of the Company’s 2010 Warrants was based on an option valuation model using the following assumptions at September 30, 2015 and December 31, 2014:


	September 30, 2015			December 31, 2014
2010 Warrants:
Expected term (in years)		0.11			0.86
Estimated volatility		61	%		55	%
Risk-free interest rate		0.02	%		0.25	%
Expected dividend yield		0	%		0	%