XML 31 R20.htm IDEA: XBRL DOCUMENT v3.4.0.3
ACCRUED AND OTHER CURRENT LIABILITIES (Tables)
3 Months Ended
Mar. 31, 2016
Payables And Accruals [Abstract]  
Schedule of accrued and other current liabilities
 
    December 31,     March 31,  
    2015     2016  
Accrued research and development   $ 3,284     $ 3,420  
Accrued legal and professional fees     291       170  
Other current liabilities     163       149  
    $ 3,738     $ 3,739