Annual report pursuant to Section 13 and 15(d)

Consolidated Balance Sheets (Parenthetical)

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Consolidated Balance Sheets (Parenthetical) (USD $)
Dec. 31, 2012
Dec. 31, 2011
Consolidated Balance Sheets [Abstract]    
Preferred Stock, Par value $ 0.001 $ 0.001
Preferred stock, shares authorized 5,000,000 5,000,000
Preferred stock, issued 0 0
Preferred stock, outstanding 0 0
Common Stock, Par value $ 0.001 $ 0.001
Common stock, shares authorized 125,000,000 125,000,000
Common stock, issued 75,215,713 59,386,542
Common stock, outstanding 75,215,713 59,386,542