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Other Income (Expense), Net
 12 Months Ended
Dec. 31, 2016
Other Income and Expenses [Abstract]  
Other Income (Expense), Net
Other Income (Expense), Net
Following is a summary of other income (expense), net (in thousands):
Year ended December 31:
 
2016
 
2015
 
2014
Interest income
 
$
39

 
$
1

 
$
5

Gain (loss) on foreign currency transactions
 
(310
)
 
(133
)
 
441

Other (expense) income, net
 
5

 
84

 
225

Total
 
$
(266
)
 
$
(48
)
 
$
671