Condensed Statements of Operations (Unaudited) (USD $)	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Condensed Statements of Operations [Abstract]
Revenue	$ 75,757		$ 87,007
Cost of revenue	372,048		502,458
Gross profit	(296,291)		(415,451)
Operating expenses:
Research and development	1,673,338	2,620,554	4,108,096	5,196,682
General and administrative	3,528,575	2,208,059	6,746,066	4,601,179
Operating loss	(5,498,204)	(4,828,613)	(11,269,613)	(9,797,861)
Interest income	9,021	13,934	22,405	34,465
Other income	4,996	5,022	9,996	11,670
Net loss	$ (5,484,187)	$ (4,809,657)	$ (11,237,212)	$ (9,751,726)
Basic and diluted net loss per common share	$ (0.18)	$ (0.19)	$ (0.37)	$ (0.39)
Basic and diluted weighted average number of common shares outstanding	30,332,217	25,262,538	30,323,061	25,262,538