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Accumulated Other Comprehensive Loss (Tables)
 12 Months Ended
Dec. 31, 2014
Statement of Comprehensive Income [Abstract]  
Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block]
The components of accumulated other comprehensive loss, net of tax, are as follows:


Foreign currency translation adjustments

Net unrealized losses on available-for-sale investments

Accumulated other comprehensive loss
Beginning Balance, December 31, 2012

$
985


$
100


$
1,085

    Net current period other comprehensive loss

660


50


710

    Reclassifications

—


—


—

Beginning Balance, December 31, 2013

$
1,645


$
150


$
1,795

    Net current period other comprehensive loss

1,040


(183
)

857

    Reclassifications

—


—


—

Ending balance, December 31, 2014

$
2,685


$
(33
)

$
2,652