XML 19 R30.htm IDEA: XBRL DOCUMENT v3.2.0.727
Accounts payable and accrued expenses (Details) - USD ($)
$ in Thousands
Jun. 30, 2015
Dec. 31, 2014
Accounts payable and accrued expenses    
Employee compensation, benefits, and related accruals $ 5,621 $ 9,312
Consulting and contracted research 9,643 9,349
Professional fees 2,610 3,334
Accounts payable 3,406 4,128
Other 1,802 2,998
Accounts payable and accrued expenses $ 23,082 $ 29,121