Annual report pursuant to Section 13 and 15(d)

Income Taxes Income Tax Reconciliation (Details)

v3.3.1.900
Income Taxes Income Tax Reconciliation (Details) - USD ($)
$ in Thousands
3 Months Ended 12 Months Ended
Dec. 31, 2015
Sep. 30, 2015
Jun. 30, 2015
Mar. 31, 2015
Dec. 31, 2014
Sep. 30, 2014
Jun. 30, 2014
Mar. 31, 2014
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Income Tax Disclosure [Abstract]                      
Federal statutory tax rate (percent)                 34.00% 34.00%  
Expected income tax expense (benefit)                 $ (10,040) $ (9,828) $ (6,671)
State income taxes, net of federal tax effect                 (830) (347) (549)
Changes in tax rate                 48 20 1
Federal R&D credit                 (82) (88) (57)
Change in valuation allowance                 9,906 2,957 3,659
Foreign tax                 80 690 108
Other, net                 79 32 113
Income tax expense (benefit) $ (357) $ (163) $ (146) $ (174) $ (626) $ (4,492) $ (296) $ (1,150) $ (839) $ (6,564) $ (3,396)