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Prepaid Expenses and Other Current Assets
 12 Months Ended
Dec. 31, 2015
Prepaid Expenses and Other Current Assets [Abstract]  
Prepaid Expenses and Other Current Assets

3.   Prepaid Expenses and Other Current Assets

 

Prepaid expense and other current assets consist of the following (in thousands):

 

  As of December 31, 
  2015  2014 
       
Prepaid insurance $119  $122 
Prepaid rent  52   39 
VAT receivable  337   137 
Other  239   215 
Total prepaid expenses and other current assets $747  $513