Quarterly report pursuant to Section 13 or 15(d)

CONDENSED BALANCE SHEETS (Parenthetical)

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CONDENSED BALANCE SHEETS (Parenthetical) (USD $)
Mar. 31, 2012
Dec. 31, 2011
CONDENSED BALANCE SHEETS    
Preferred stock, par value (in dollars per share) $ 0.001 $ 0.001
Preferred stock, shares authorized 10,000,000 10,000,000
Preferred stock, shares issued 0 0
Preferred stock, shares outstanding 0 0
Common stock, par value (in dollars per share) $ 0.001 $ 0.001
Common stock, shares authorized 100,000,000 100,000,000
Common stock, shares issued 71,451,245 71,379,052
Common stock, shares outstanding 71,451,245 71,379,052