Consolidated Balance Sheets (Parentheticals) (USD $)	Mar. 31, 2013	Dec. 31, 2012
Preferred stock, shares authorized (in Shares)	50,000,000	50,000,000	[1]
Preferred stock, par value (in Dollars per share)	$ 0.00001	$ 0.00001	[1]
Preferred stock, shares issued (in Shares)	0	0	[1]
Preferred stock, shares outstanding (in Shares)	0	0	[1]
Common stock, shares authorized (in Shares)	395,000,000	395,000,000	[1]
Common stock, par value (in Dollars per share)	$ 0.001	$ 0.001	[1]
Common stock, shares issued (in Shares)	301,004,559	288,771,227	[1]
Common stock, shares outstanding (in Shares)	301,004,559	288,771,227	[1]

[1] The consolidated balance sheet as of December 31, 2012 has been prepared using information from the audited balance as of that date.