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COMMON STOCK (Tables)
12 Months Ended
Dec. 31, 2012
Notes to Financial Statements  
Schedule of Common Stock issued and outstanding
         
Shares of
       
   
Shares
   
Treasury
   
Shares
 
   
Issued
   
Stock
   
Outstanding
 
January 1, 2011, $.50 par value stock, 400,000 shares authorized
    184,735       23,456       161,279  
Purchase of stock
    —       259       (259 )
                         
December 31, 2011, $.50 par value stock, 400,000 shares authorized
    184,735       23,715       161,020  
Purchase of stock
    —       232       (232 )
                         
December 31, 2012, $.50 par value stock, 200,000 shares authorized
    184,735       23,947       160,788