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CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) (USD $)
Sep. 30, 2011
Dec. 31, 2010
Preferred stock, par value$ 0.0001$ 0.0001
Preferred stock, shares authorized1,000,0001,000,000
Preferred stock, shares issued00
Preferred stock, shares outstanding00
Common stock, par value$ 0.0001$ 0.0001
Common stock, shares authorized49,000,000100,000,000
Common stock, issued14,491,30713,857,127
Common stock, outstanding13,857,42013,384,860
Treasury stock, at cost633,887472,267