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Income Tax (Details Textual) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2016
Jun. 30, 2015
Jun. 30, 2016
Jun. 30, 2015
Income Taxes [Line Items]        
Gain On Reduction Of Contingent Obligations $ 3,000   $ 3,000  
Effective Income Tax Rate, Continuing Operations 70.00% 4.00% 66.00% (1.00%)
Income Tax Expense (Benefit) $ 208 $ (90) $ 259 $ 16
Effective Income Tax Rate Reconciliation, Other Adjustments, Percent 29.00% 37.00% 25.00% 42.00%