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Segment Information (Tables)
12 Months Ended
Dec. 31, 2012
Segment Information [Abstract]  
Schedule of Revenue by Geographical Areas

 

 

 

 

 

 

 

 

 

 

 

  

Year Ended December 31,

 

  

2012

 

2011

 

2010

United States

  

$

27,034,200 

  

$

23,947,048 

  

$

28,840,803 

International

  

 

19,528,234 

  

 

18,040,384 

  

 

25,210,434 

Total

  

$

46,562,434 

  

$

41,987,432 

  

$

54,051,237