Supplemental Cash Flow Disclosures (Tables)

6 Months Ended

Jun. 30, 2015

Supplemental Cash Flow Elements [Abstract]

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

Non-cash investing and financing activity for six months ended June 30, 2015 and 2014 include:

	2015		2014
Conversion of convertible debt to common stock	$	-	$	3,067,423
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		-		8,825,936
Warrants issued in connection with convertible debt and equity facility		-		29,137,683
Reclassification of warrant derivative liability to additional paid-in capital as a result of the expiration of non-standard anti-dilution clause contained in warrants		-		1,331,776