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Stock Options and Restricted Stock (Details 2) (Stock Options [Member], USD $)
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
Stock Options [Member]
     
Summary of number of shares exercisable      
Exercisable, Number of shares 100,000 100,000 100,000
Exercisable, Weighted-average exercise price $ 107.28 $ 107.28 $ 107.28