Condensed Consolidated Statement of Stockholders Equity (USD $)	Total	Series A Preferred Stock [Member]	Common Stock [Member]	Additional Paid-In Capital [Member]	Treasury Stock [Member]	Accumulated Deficit [Member]
Beginning Balance at Dec. 31, 2012	$ 49,777,213	$ 2,709	$ 37,499	$ 143,703,583	$ (47,183)	$ (93,919,395)
Beginning Balance, Shares at Dec. 31, 2012		2,709,300	37,497,703
Stock-based compensation	1,365,259			1,365,259
Restricted stock awards			12	(12)
Restricted stock awards, Shares			12,111
Shares issued to Arcion in acquisition of research and development license	2,072,136		500	2,071,636
Shares issued to Arcion in acquisition of research and development license, Shares			500,516
Exercise of stock options	9,235		5	9,230
Exercise of stock options, Shares	5,188		5,188
Net loss	(26,137,651)					(26,137,651)
Ending Balance at Jun. 30, 2013	$ 27,086,192	$ 2,709	$ 38,016	$ 147,149,696	$ (47,183)	$ (120,057,046)
Ending Balance, Shares at Jun. 30, 2013		2,709,300	38,015,518