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Accounts Payable and Accrued Expenses
 12 Months Ended
Dec. 31, 2013
Payables and Accruals [Abstract]  
Accounts Payable and Accrued Expenses
Accounts Payable and Accrued Expenses
Accounts payable and accrued expenses at December 31, 2013 and 2012 consist of the following:
 
 
As of
 
As of
 
December 31,
2013
 
December 31,
2012
Trade accounts payable
$
1,865,723

 
$
852,573

Accrued compensation
2,586,806

 
1,560,704

Other accrued expenses
991,979

 
768,297

 
$
5,444,508

 
$
3,181,574