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Income Taxes (Details Textual) (USD $)
3 Months Ended 6 Months Ended
Jun. 30, 2014
Jun. 30, 2013
Jun. 30, 2014
Jun. 30, 2013
Dec. 31, 2013
Income Tax Contingency [Line Items]          
Unrecognized Tax Benefits         $ 0
Income Tax (Textual) [Abstract]          
Effective tax rate 55.90% 37.90% 44.90% 40.20%  
U.S. federal statutory corporate tax rate 35.00%