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Income Taxes (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2017
Sep. 30, 2016
Sep. 30, 2017
Sep. 30, 2016
Income Taxes [Abstract]        
Provision for income taxes $ 92 $ 80 $ 399 $ 275
Effective tax rate (17.90%) 32.30% 112.40% 39.70%
Minimum [Member]        
Income Tax Examination [Line Items]        
Probability of uncertain tax position to be recognized     50.00%  
Percentage of tax position realized upon ultimate settlement     50.00%  
Sweden [Member] | Minimum [Member]        
Income Tax Examination [Line Items]        
Income tax examination, year under examination     2011  
China [Member] | Minimum [Member]        
Income Tax Examination [Line Items]        
Income tax examination, year under examination     2014  
India [Member] | Minimum [Member]        
Income Tax Examination [Line Items]        
Income tax examination, year under examination     2015  
UK [Member] | Minimum [Member]        
Income Tax Examination [Line Items]        
Income tax examination, year under examination     2015  
Federal [Member] | Minimum [Member]        
Income Tax Examination [Line Items]        
Income tax examination, year under examination     1997  
State [Member] | Minimum [Member]        
Income Tax Examination [Line Items]        
Income tax examination, year under examination     1997