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Income Taxes - (Tables)
 6 Months Ended
Jun. 30, 2014
Income Taxes [Abstract]  
Schedule of effective tax rate [Table Text Block]
The following table provides details of income taxes:


Three Months Ended
 
Six Months Ended
 
June 30,
 
June 30,
 
2014

2013
 
2014
 
2013
Income (loss) before income taxes
$
(10,995
)
 
$
1,332

 
$
(12,036
)
 
$
1,077

Provision (benefit) for income taxes
$
(6,583
)
 
$
573

 
$
(6,900
)
 
$
(75
)
Effective tax rate
59.9
%
 
43.0
%
 
57.3
%
 
(7.0
)%