CONDENSED CONSOLIDATED STATEMENT OF STOCKHOLDERS' EQUITY (USD $)	Common Stock [Member]	Additional Paid-In Capital [Member]	Deficit Accumulated During The Development Stage [Member]	Total
Balance at Dec. 31, 2012	$ 6,708	$ 240,970,852	$ (215,061,410)	$ 25,916,150
Balance (in shares) at Dec. 31, 2012	67,075,779
Stock-based compensation	0	625,874	0	625,874
Net loss	0	0	(3,917,219)	(3,917,219)
Balance at Mar. 31, 2013	$ 6,708	$ 241,596,726	$ (218,978,629)	$ 22,624,805
Balance (in shares) at Mar. 31, 2013	67,075,779