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Income Taxes (Tables)
6 Months Ended
Jun. 30, 2017
Income Taxes [Abstract]  
Schedule of Income Taxes
The following table presents the provision for income taxes and the effective tax rates:

(in thousands)
 
Three months ended
June 30,
 
Six months ended
June 30,
 
2017
 
2016
  
2017
 
2016
            
Provision for income taxes
$
234
 
$
108
 
$
307
 
$
196
Effective tax rate
 
22.1 %
  
49.3%
  
35.4 %
  
44.0%