Annual report pursuant to Section 13 and 15(d) 12-31-2015

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

v3.3.1.900
Income Taxes - Significant Components of Deferred Tax Assets and Liabilities (Details) - USD ($)
$ in Thousands
Dec. 31, 2015
Dec. 31, 2014
Income Tax Disclosure [Abstract]    
Deferred tax assets, Net operating loss carryforwards $ 56,679 $ 50,673
Deferred tax assets:, Depreciation 37 60
Deferred tax assets:, Research credits 2,222 2,587
Deferred tax assets:, Other 6,308 6,057
Total deferred tax assets 65,246 59,377
Deferred tax liabilities, Amortization of intangible assets (807) (918)
Total deferred tax liabilities (807) (918)
Net deferred tax assets 64,439 58,459
Less valuation allowance (64,573) (58,593)
Net deferred tax assets (liabilities) $ (134) $ (134)