Fair Value Measurement (Tables)

6 Months Ended

Jun. 30, 2013

Fair Value Measurement Tables

Financial liabilities measured at fair value

	Fair value measurements at June 30, 2013 using
	June 30 2013		Quoted prices in active markets for identical assets (Level 1)		Significant other observable inputs (Level 2)		Significant unobservable inputs (Level 3)
Liabilities:
Fair value of warrant liabilities	$	76,506		–		–	$	76,506

	Fair value measurements at December 31, 2012 using
	December 31, 2012		Quoted prices in active markets for identical assets (Level 1)		Significant other observable inputs (Level 2)		Significant unobservable inputs (Level 3)
Liabilities:
Fair value of warrant liabilities	$	3,125,393		–		–	$	3,125,393

Liabilities resulting from the Series B Warrants

	June 30,		December 31,
	2013		2012
Warrants:
Risk-free interest rate		0.10% - 1.04%		0.16% - 0.72%
Expected volatility		1.41-106.35%		91.79% - 146.03%
Expected life (in years)		0.3-4.4		0.8 - 4.9
Expected dividend yield		-		-
Number of warrants		75,757		550,664
Fair value	$	76,506	$	3,125,393