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PREPAID EXPENSES AND OTHER CURRENT ASSETS
 3 Months Ended
Mar. 31, 2016
Prepaid Expenses And Other Current Assets [Abstract]  
PREPAID EXPENSES AND OTHER CURRENT ASSETS
4. PREPAID EXPENSES AND OTHER CURRENT ASSETS

 

Prepaid expenses and other current assets consisted of the following (in $000s):

 

    December 31,     March 31,  
    2015     2016  
Research and development tax credit receivable   $ 2,093     $ 2,503  
Prepayments     893       826  
Grant receivable     326       35  
VAT receivable     607       624  
Deposits     132       132  
    $ 4,051     $ 4,120