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OTHER INCOME (EXPENSE) , NET
 3 Months Ended
Mar. 31, 2015
Other Income and Expenses [Abstract]  
OTHER INCOME (EXPENSE), NET
OTHER INCOME (EXPENSE), NET
The principal components of other income (expense), net, are as follows (in thousands):
 
 
Three Months Ended March 31,
 
2015
 
2014
Interest and investment income
$
14

 
$
21

Income tax benefit (expense)
(84
)
 
(112
)
Total other income (expense), net
$
(70
)
 
$
(91
)