Supplemental Cash Flow Disclosures (Tables)

3 Months Ended

Mar. 31, 2015

Supplemental Cash Flow Elements [Abstract]

Schedule of Cash Flow, Supplemental Disclosures [Table Text Block]

Non-cash investing and financing activity for three months ended March 31, 2015 and 2014 include:

	2015		2014
Conversion of convertible debt to common stock	$	--	$	2,936,423
Reclassification of the unamortized balance of debt discount and derivative liability, related to the extinguishment and conversion of the subordinated convertible debt, to additional paid-in capital		--		2,860,627
Derivative liability created from conversion option embedded in Deerfield convertible credit facility		--		3,567,835
Warrants issued in connection with convertible debt and equity facility		--		7,681,188