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Restructuring (Tables)
 12 Months Ended
Dec. 31, 2013
Restructuring Cost and Reserve [Line Items]  
Schedule of Restructuring and Related Costs [Table Text Block]
The following table summarizes the activity related to the accrual for restructuring charges for the year ended December 31, 2013 (in thousands):

Description
Amount
Charges
$
1,376

Payments
(474
)
Total
$
902