Fair Value (Tables)

9 Months Ended

Sep. 30, 2013

Fair Value [Abstract]

Schedule of Financial Assets and Liabilities at Fair Value on a Recurring Basis

The following tables summarize the basis used to measure certain financial assets and liabilities at fair value on a recurring basis in the condensed consolidated balance sheets:

			Quoted Prices in Active			Significant		Significant
			Markets for Identical			Other Observable		Other Unobservable
				Items		Inputs		Inputs
Balance at September 30, 2013	Total			(Level 1)		(Level 2)		(Level 3)
Common stock warrant liability	$	12,895,564		$	-	$	-	$	12,895,564

			Quoted Prices in Active			Significant		Significant
			Markets for Identical			Other Observable		Other Unobservable
				Items		Inputs		Inputs
Balance at December 31, 2012	Total			(Level 1)		(Level 2)		(Level 3)
Common stock warrant liability	$	475,825		$	-	$	-	$	475,825

Schedule of Reconciliations of Balances for Liabilities Measured at Fair Value on a Recurring Basis

The following tables show reconciliations of the beginning and ending balances for liabilities measured at fair value on a recurring basis using significant unobservable inputs (i.e. Level 3) for the nine months ended September 30, 2013:

	Fair Value
	Measurement Using
	Significant
Common stock warrant liability	Unobservable Inputs
Beginning of period - January 1, 2013	$	475,825
Change in fair value of common stock warrants	16,171,061
Issuance of common stock warrants	2,451,028
Exercise of common stock warrants	(6,202,350)
Fair value of common stock warrant liability at September 30, 2013	$	12,895,564