Condensed Consolidated Statement of Stockholders' Equity (Unaudited) (USD $)	Total	Common Shares Shares Issued	Additional Paid-In Capital	Accumulated Deficit	Accumulated Other Comprehensive Loss
Beginning Balance at Dec. 31, 2010	$ 167,764,354	$ 13,879	$ 302,533,344	$ (127,268,545)	$ (7,514,324)
Beginning Balance, shares at Dec. 31, 2010		13,878,686
Issuance of common stock pursuant to share-based awards, shares		174,840
Issuance of common stock pursuant to share-based awards	658,723	175	658,548
Share-based compensation	9,994,589		9,994,589
Net loss	(33,491,362)			(33,491,362)
Other comprehensive loss:
Foreign currency translation adjustment	(169,243)				(169,243)
Unrealized loss on investments	(22,152)				(22,152)
Ending Balance at Sep. 30, 2011	$ 144,734,909	$ 14,054	$ 313,186,481	$ (160,759,907)	$ (7,705,719)
Ending Balance, shares at Sep. 30, 2011		14,053,526