Quarterly report pursuant to Section 13 or 15(d)

Selected Balance Sheet Information (Details 2)

v3.8.0.1
Selected Balance Sheet Information (Details 2) - USD ($)
$ in Thousands
Mar. 31, 2018
Dec. 31, 2017
Accrued Expenses [Line Items]    
Accrued clinical consulting services $ 621 $ 658
Accrued vendor payments 376 193
Accrued manufacturing costs 55 661
Other accrued expenses 6 14
Total $ 1,058 $ 1,526