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Income Taxes (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2015
Sep. 30, 2014
Sep. 30, 2015
Sep. 30, 2014
Income Taxes        
Income tax expense $ 146 $ 156 $ 385 $ 502
Current:        
Recognized income tax expense     $ 156