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Income Taxes (Details) (USD $)
9 Months Ended
Sep. 30, 2012
Sep. 30, 2011
Dec. 31, 2011
Income Taxes (Textual) [Abstract]      
Income Tax Expense (Benefit) $ 1,461,000 $ 5,710,000  
Effective income tax rate 25.00% 35.00%  
Income taxes payable 1,180,000   2,484,000
Income tax payments related to 2011 tax year 3,401,000    
Income tax receivable related to two thousand eleven tax year $ 580,000