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Long Term Retention Plan (Tables)
3 Months Ended
Mar. 31, 2012
Long Term Retention Plan [Abstract]  
Long term retention plan additional compensation payable in cash and shares
   

Year 1 (2008): 17%

 

   

Year 2 (2009): 22%

 

   

Year 3 (2010): 27%

 

   

Year 4 (2011): 34%

Long Term Retention Plan accrued compensation expense
                 
    Three Months Ended March 31,  
    2012     2011  

LTRP    2009

  $ 677,819     $ 519,086  

LTRP    2010

    584,157       507,977  

LTRP    2011

    567,062       —