Fair Value Measurements (Tables)

12 Months Ended

Dec. 31, 2014

Fair Value Disclosures [Abstract]

Schedule Of Financial Assets And Liabilities At Fair Value [Table Text Block]

The following table represents the fair value hierarchy for our financial assets and liabilities measured at fair value on a recurring basis for the year ended December 31, 2014 and 2013:

	As of December 31, 2014
Description	Level 1		Level 2		Level 3		Total
Assets
Investment in money market funds	$	15,736,350	$	-	$	-	$	15,736,350
Total investment in money market funds	$	15,736,350	$	-	$	-	$	15,736,350
Liabilities
Embedded conversion options	$	-	$	-	$	4,362,225	$	4,362,225
Stock purchase warrants		-		-		25,484,596		25,484,596
Total derivative liabilities	$	-	$	-	$	29,846,821	$	29,846,821

	As of December 31, 2013
	Level 1		Level 2		Level 3		Total
Assets
Investment in money market funds	$	2,303,556	$	-	$	-	$	2,303,556
Total investment in money market funds	$	2,303,556	$	-	$	-	$	2,303,556
Liabilities
Embedded conversion options	$	-	$	-	$	1,515,540	$	1,515,540
Stock purchase warrants		-		-		1,733,055		1,733,055
Total derivative liabilities	$	-	$	-	$	3,248,595	$	3,248,595

Fair Value, Measurement Inputs, Disclosure [Table Text Block]

The following tables set forth a summary of changes in the fair value of Level 3 liabilities measured at fair value on a recurring basis for the year ended December 31, 2014 and 2013:

	Balance at				Modification		Effect of						Balance at
	January 1,		Established in		of Convertible		Conversion to		Change in		Reclass to		December 31,
Description	2014		2014		Debt Agreement		Common Stock		Fair Value		Equity (1)		2014
Derivative liabilities:
Embedded conversion options	$	1,515,540	$	8,825,935	$	-	$	(1,932,693)	$	(4,046,557)	$	-	$	4,362,225
Stock purchase warrants		1,733,055		29,137,682		-		-		(4,054,365)		(1,331,776)		25,484,596

	Balance at				Modification								Balance at
	January 1,		Established in		of Convertible		Conversion to		Change in		Reclass to		December 31,
Description	2013		2013		Debt Agreement		Common Stock		Fair Value		Equity		2013
Derivative liabilities:
Embedded conversion options	$	780,960	$	965,484	$	250,361	$	(393,948)	$	90,839	$	(178,156)	$	1,515,540
Stock purchase warrants		-		1,353,842		-		-		379,213		-		1,733,055

(1) Various warrants were reclassified to additional paid-in capital as a result of the expiration of non-standard anti-dilution clauses contained within the warrants.

Schedule of Impaired Intangible Assets [Table Text Block]

The following table represents the fair value hierarchy for our non-financial assets that were measured during 2014 (we did not remeasure any of our non-financial assets during 2013):

	Level 1		Level 2		Level 3		Total
Intangible assets
Intangible assets - IPR&D	$	—	$	—	$	25,926,000	$	25,926,000
Intangible assets - Trademarks		—		—		706,229		706,229
Total	$	—	$	—	$	26,632,229	$	26,632,229