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Property and Equipment (Tables)
12 Months Ended
Dec. 31, 2012
Property and Equipment [Abstract]  
Property and equipment
                     
    2012     2011     Estimated Useful
Life

Office equipment

  $ 8,863,377     $ 8,347,493     5-15 years

Automobiles

    2,010,762       2,111,218     3 years

Real estate

    5,356,705       5,016,722     15-50 years

Software

    2,717,206       2,316,617     5 years
   

 

 

   

 

 

     
      18,948,050       17,792,050      

Accumulated depreciation

    (12,994,217     (11,637,667    
   

 

 

   

 

 

     
    $ 5,953,833     $ 6,154,383