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Condensed Consolidated Balance Sheets (Parenthetical) (USD $)
Sep. 30, 2012
Dec. 31, 2011
Common stock, par value $ 1 $ 1
Common stock, shares authorized 50,000,000 50,000,000
Common stock, shares issued 20,308,827 18,082,822
Treasury stock, shares 222,423 233,446
Undesignated Par Value
    
Preferred stock      
Preferred stock, shares authorized 1,000,000 1,000,000
Designated Par Value
    
Preferred stock, par value $ 0.01 $ 0.01
Preferred stock, shares authorized 25,000 25,000
Preferred stock, shares oustanding 17,921 18,921