Schedule of Fair Value Measurements (Tables)

12 Months Ended

Dec. 31, 2013

Schedule of Fair Value Measurements:

Fair Value, Assets Measured on Recurring Basis

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

 Basis of Fair Value Measurements

			Quoted Prices in Active			Significant		Significant
			Markets for Identical			Other Observable		Other Unobservable
				Items		Inputs		Inputs
Balance at December 31, 2013	Total			(Level 1)		(Level 2)		(Level 3)
Common stock warrant liability	$	28,829,849		$	-	$	-	$	28,829,849

			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

Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation

The following tables show reconciliations of the beginning and ending balances for assets measured at fair value on a recurring basis using significant unobservable inputs (i.e. Level 3):

	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	37,101,818
Issuance of common stock warrants	2,451,028
Exercise of common stock warrants	(11,198,822)
Fair value of common stock warrant liability at December 31, 2013	$	28,829,849

	Fair Value
	Measurement Using
	Significant
Common stock warrant liability	Unobservable Inputs
Beginning of period - January 1, 2012	$	5,320,990
Change in fair value of common stock warrants	(4,845,165)
Fair value of common stock warrant liability at December 31, 2012	$	475,825