CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY (USD $)	Total	COMMON SHARES	PURCHASE WARRANTS	ACCUMULATED DEFICIT	ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS)
Balance at Dec. 31, 2009	$ 29,323,202	$ 53,545,394	$ 7,635,594	$ (31,857,786)
Balance (purchase warrants in shares) at Dec. 31, 2009			3,318,569
Balance (in shares) at Dec. 31, 2009		17,200,442
Increase (Decrease) in Stockholders' Equity
Net Loss	(2,683,399)			(2,683,399)
Unrealized Gain (Loss) on Available-for-Sale Investments	(213,623)				(213,623)
Issuance of Common Shares	90,448	90,448
Issuance of Common Shares (in shares)		313,166
Issuance of Purchase Warrants	639,915		639,915
Issuance of Purchase Warrants (in shares)			20,000
Stock Option Based Expense	3,048,750	3,048,750
Restricted Stock Amortization	332,644	332,644
Balance at Dec. 31, 2010	30,537,937	57,017,236	8,275,509	(34,541,185)	(213,623)
Balance (purchase warrants in shares) at Dec. 31, 2010	3,338,569		3,338,569
Balance (in shares) at Dec. 31, 2010	17,513,608	17,513,608
Increase (Decrease) in Stockholders' Equity
Net Loss	(21,444,557)			(21,444,557)
Reclassification of Losses Included in Net Loss	84,590				84,590
Unrealized Gain (Loss) on Available-for-Sale Investments	(152,079)				(152,079)
Issuance of Common Shares	719,484	719,484
Issuance of Common Shares (in shares)		397,054
Exercise of Purchase Warrants	3,877,276	5,361,135	(1,483,859)
Exercise of Purchase Warrants (in shares)	799,340	799,340	(831,129)
Issuance of Purchase Warrants	312,325		312,325
Issuance of Purchase Warrants (in shares)			100,000
Additional Paid In Capital	244,289	244,289
Stock Option Based Expense	3,469,703	3,469,703
Restricted Stock Amortization	596,000	596,000
Balance at Dec. 31, 2011	18,244,968	67,407,847	7,103,975	(55,985,742)	(281,112)
Balance (purchase warrants in shares) at Dec. 31, 2011	2,607,440		2,607,440
Balance (in shares) at Dec. 31, 2011	18,710,002	18,710,002
Increase (Decrease) in Stockholders' Equity
Net Loss	(54,021,515)			(54,021,515)
Reclassification of Losses Included in Net Loss	67,303				67,303
Unrealized Gain (Loss) on Available-for-Sale Investments	213,809				213,809
Issuance of Common Shares	16,252,695	16,252,695
Issuance of Common Shares (in shares)		2,296,477
Shares Issued in Exchange for Services	1,854,000	1,854,000
Shares Issued in Exchange for Services (in shares)		200,000
Exercise of Purchase Warrants	1,978,729	2,372,192	(393,463)
Exercise of Purchase Warrants (in shares)	288,217	288,217	(374,200)
Purchase Warrants Expense	468,417		468,417
Stock Option Based Expense	3,903,795	3,903,795
Restricted Stock Amortization	1,075,929	1,075,929
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	2,233,240