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CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) (USD $)
Mar. 31, 2012
Dec. 31, 2011
Preferred stock, par value $ 0.0001 $ 0.0001
Preferred stock, shares authorized 1,000,000 1,000,000
Preferred stock, shares issued      
Preferred stock, shares outstanding      
Common stock, par value $ 0.0001 $ 0.0001
Common stock, shares authorized 49,000,000 100,000,000
Common stock, issued 14,879,356 14,749,356
Common stock, outstanding 14,136,760 14,028,407
Treasury stock, shares 742,596 720,949