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Income Taxes (Tables)
 6 Months Ended
Jun. 30, 2014
Income Tax Disclosure [Abstract]  
Details of Income Taxes
The following table provides details of income taxes (in thousands, except percentages):
 
Three months ended
 
Six months ended
 
June 30,
 
June 30,
 
2014
 
2013
 
2014
 
2013
Loss before provision for income taxes
$
(1,586
)
 
$
(878
)
 
$
(5,552
)
 
$
(5,006
)
Provision for income taxes
681

 
115

 
932

 
421

Effective tax rate
(43
)%
 
(13
)%
 
(17
)%
 
(8
)%