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Commitments and Contingencies (Tables)
9 Months Ended
Sep. 30, 2012
Commitments and Contingencies [Abstract]  
Future operating lease commitments
         

Remainder of 2012

  $ 422  

2013

    1,384  

2014

    1,046  

2015

    273  

2016

    273  

Thereafter

    243  
   

 

 

 

Total commitments

  $ 3,641