CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY (USD $)	Total	COMMON SHARES	PURCHASE WARRANTS	ACCUMULATED DEFICIT
Balance at Dec. 31, 2012	$ (9,961,870)	$ 92,866,458	$ 7,178,929	$ (110,007,257)
Balance (purchase warrants in shares) at Dec. 31, 2012	2,233,240		2,233,240
Balance (in shares) at Dec. 31, 2012	21,494,696	21,494,696
Increase (Decrease) in Shareholders' Equity
Net Loss	(15,379,724)			(15,379,724)
Issuance of Common Shares	12,153,752	12,153,752
Issuance of Common Shares (in shares)		4,313,609
Purchase Warrant Expense	966,227		966,227
Exercise of Purchase Warrants	364,981	513,173	(148,192)
Exercise of Purchase Warrants (in shares)		50,833	(57,833)
Stock Option Based Expense	960,144	960,144
Restricted Stock Amortization	390,815	390,815
Balance at Mar. 31, 2013	$ (10,505,675)	$ 106,884,342	$ 7,996,964	$ (125,386,981)
Balance (purchase warrants in shares) at Mar. 31, 2013	2,233,240		2,175,407
Balance (in shares) at Mar. 31, 2013	21,494,696	25,859,138