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Net Income Per Share Net Income Per Share (Schedule of Securities Excluded from Net Income Per Share) (Details) (USD $)
 3 Months Ended 9 Months Ended
Sep. 30, 2013
Sep. 30, 2012
Sep. 30, 2013
Sep. 30, 2012
Options excluded from diluted net income per share 1,000 111,000 1,000 111,000
Warrants excluded from diluted net income per share 250,000 250,000 250,000 250,000
Exercise price of excluded warrants $ 187.50 $ 187.50 $ 187.50 $ 187.50
Minimum [Member]
        
Exercise price of excluded options $ 177.50 $ 93.00 $ 177.50 $ 93.00
Maximum [Member]
        
Exercise price of excluded options $ 357.00 $ 357.00 $ 357.00 $ 357.00