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CONSOLIDATED BALANCE SHEET (Parenthetical) (USD $)
Sep. 30, 2012
Dec. 31, 2011
CONSOLIDATED BALANCE SHEET [Abstract]    
Preferred stock, par $ 0.001 $ 0.001
Preferred stock, shares authorized 1,000,000 1,000,000
Preferred stock, shares issued 0 0
Common stock, par $ 0.001 $ 0.001
Common stock, shares authorized 100,000,000 100,000,000
Common stock, shares outstanding 30,576,426 30,541,506
Treasury shares, shares 10,009,492 10,009,492