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Accrued expenses and other liabilities (Tables)
12 Months Ended
Dec. 31, 2012
Accrued expenses and other liabilities  
Schedule of accrued expenses and other liabilities
 
  December 31,  
 
  2012   2011  

Salaries and wages

  $ 3,312   $ 3,934  

Revenue share

    3,676     3,915  

Accrued partner network

    1,134     1,274  

Accrued for construction-in-progress

    1,003     688  

Deferred service usage credits

        634  

Deferred rent

    791     223  

Accrued taxes

        683  

Other

    1,061     1,408  
           

Total accrued expenses and other liabilities

  $ 10,977   $ 12,759