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Prepaid Expenses and Other Current Assets (Tables)
9 Months Ended
Sep. 30, 2014
Prepaid Expenses and Other Current Assets [Abstract]  
Prepaid expenses and other current assets
Prepaid expenses and other current assets consist of the following:

(in thousands)
 
September 30,
2014
  
December 31,
2013
 
Kits for clinical use
 
$
227
  
$
287
 
Insurance premiums
  
184
   
407
 
Professional fees
  
160
   
377
 
Other1
  
181
   
640
 
Total prepaid expenses and other current assets
 
$
752
  
$
1,711
 
 
1 Other consists of various prepaid expenses and other current assets with no individual item accounting for more than 5% of the total balance at September 30, 2014 and December 31, 2013.