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Stockholders' Equity (Tables)
 12 Months Ended
Dec. 31, 2013
Equity [Abstract]  
Components of Accumulated Other Comprehensive Loss
The components of accumulated other comprehensive loss were as follows (in thousands):
 
December 31,
 
2013
 
2012
Foreign currency translation adjustments
$
(242
)
 
$
(502
)
Unrealized gain on investments
33

 
37

Accumulated other comprehensive loss
$
(209
)
 
$
(465
)