Annual report pursuant to Section 13 and 15(d)

Income Taxes - Schedule of Deferred Tax Assets and Liabilities (Details)

v3.8.0.1
Income Taxes - Schedule of Deferred Tax Assets and Liabilities (Details) - USD ($)
$ in Thousands
Dec. 31, 2017
Dec. 31, 2016
Income Tax Disclosure [Abstract]    
Net operating loss carryforwards $ 15,003 $ 20,633
Compensation 961 1,323
Research and development tax credits 1,789 1,390
Property and equipment 8 22
Other 373 545
Total gross deferred tax assets 18,134 23,912
Acquired in-process research and development (13,875) (20,462)
Total Deferred Tax Liabilities (13,875) (20,462)
Net deferred tax assets 4,259 3,450
Valuation allowance (17,841) (23,912)
Net Deferred Tax Liability $ (13,582) $ (20,462)