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Stockholders' Equity (Tables)
 12 Months Ended
Dec. 31, 2016
Equity [Abstract]  
Changes in Accumulated Other Comprehensive Income (Loss)
The changes in accumulated other comprehensive income (loss) are included in the table below.
 
Year Ended December 31, 2016
 
Unrealized Gains
and Losses on
Available-for Sale
Securities         
 
Foreign
Currency
Items    
 
Total    
  
(In thousands)
Beginning balance
$
(15
)
 
$
101

 
$
86

Other comprehensive income before reclassifications
8

 
21

 
29

Amounts reclassified from accumulated other comprehensive income (loss)
—

 


 
—

Net current period other comprehensive income (loss)
8

 
21

 
29

Ending Balance
$
(7
)
 
$
122

 
$
115