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Income Per Common Share (Details 1) (Stock Options [Member])
3 Months Ended 9 Months Ended
Sep. 30, 2012
Sep. 30, 2011
Sep. 30, 2012
Sep. 30, 2011
Stock Options [Member]
       
Antidilutive securities excluded from computation of earning per share        
Antidilutive securities excluded from computation of earning per share 254,000 5,000 254,000 0