Annual report pursuant to Section 13 and 15(d)

Selected Balance Sheet Information (Details)

v3.6.0.2
Selected Balance Sheet Information (Details) - USD ($)
$ in Thousands
Dec. 31, 2016
Dec. 31, 2015
Other Current Assets [Line Items]    
Prepaid clinical research organizations $ 1,677 $ 8,329
Prepaid insurances 358 339
Other prepaid expenses 295 208
Other receivables 185 0
Intrexon prepaid research and development expenses 0 643
Total $ 2,515 $ 9,519