Condensed Consolidated Statement of Stockholders' Equity (Unaudited) (USD $) In Thousands	Total	Common Stock	Additional Paid-In Capital	Accumulated Deficit
Beginning balance at Dec. 31, 2010	$ 10,659	$ 13	$ 181,336	$ (170,690)
Beginning balance, shares at Dec. 31, 2010		127,119,323
Stock issuance, shares		5,111,182
Stock issuance	9,999		9,999
Warrant and option exercise, shares		2,825,000
Warrant and option exercise	3,160	1	3,159
Stock-based compensation	1,738		1,738
Net Loss	(11,082)			(11,082)
Ending balance at Jun. 30, 2011	$ 14,474	$ 14	$ 196,232	$ (181,772)
Ending balance, shares at Jun. 30, 2011		135,055,505