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CONSOLIDATED BALANCE SHEETS (Parenthetical) (USD $)
Mar. 31, 2013
Dec. 31, 2012
CONSOLIDATED BALANCE SHEETS    
Preferred stock, par value (in dollars per share) $ 1.00 $ 1.00
Preferred stock, shares authorized 4,000,000 4,000,000
Preferred stock, shares issued 0 0
Common stock, par value (in dollars per share) $ 0.01 $ 0.01
Common stock, shares authorized 25,000,000 25,000,000
Common stock, shares issued 20,905,318 20,732,500
Common stock, shares outstanding 20,905,318 20,732,500
Treasury stock, shares 97,816 80,076