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Accrued Expenses (Tables)
12 Months Ended
Dec. 31, 2013
Accrued Expenses [Abstract]  
Schedule of accrued expenses

 
As of December 31,
 
 
2013
 
2012
 
 
 
 
 
 
Salaries, payroll taxes, vacation and benefits
  $ 706     $ 621  
Accrued consulting fees and other
    272       183  
Total accrued expenses
  $ 978     $ 804