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Capitalized Software (Tables)
12 Months Ended
Dec. 31, 2011
Capitalized Software  
Schedule of capitalized software costs

  2011   2010  

Capitalized software costs

  $ 132,544   $ 135,827  

Less: accumulated amortization

    81,286     77,903  
           

Total

  $ 51,258   $ 57,924