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Other Income, Net (Tables)
 12 Months Ended
Dec. 31, 2012
Other Income and Expenses [Abstract]  
Summary of other income, net
Following is a summary of other income, net (in thousands):
Years ended December 31:
 
2012
 
2011
 
2010
Interest income
 
$
7

 
$
51

 
$
118

Loss on foreign currency transactions
 
(316
)
 
(118
)
 
196

Other, net
 
255

 
97

 
(674
)
Total
 
$
(54
)
 
$
30

 
$
(360
)