Condensed Consolidated Balance Sheets Parentheticals (Unaudited) (USD $)	Mar. 31, 2012	Dec. 31, 2011
Convertible preferred stock, par value	$ 0.00001	$ 0.00001
Convertible preferred stock, shares authorized	10,000,000	10,000,000
Convertible preferred stock, shares issued	0	0
Convertible preferred stock, shares outstanding	0	0
Common stock, par value	$ 0.00001	$ 0.00001
Common stock, shares authorized	1,000,000,000	1,000,000,000
Common stock, shares issued	529,177,000	526,409,000
Common stock, shares outstanding	529,177,000	526,409,000