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Income Taxes (Details Textual)
3 Months Ended 6 Months Ended
Jun. 30, 2019
Jun. 30, 2018
Jun. 30, 2019
Jun. 30, 2018
Income Tax Disclosure [Abstract]        
Effective income tax rate reconciliation percent 99.50% 24.40% 33.50% 25.70%
Effective income tax rate reconciliation at federal statutory income tax rate, percent     21.00%