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Accrued Liabilities (Tables)
12 Months Ended
Dec. 31, 2015
Accrued Liabilities [Abstract]  
Schedule of Accrued Liabilities [Table Text Block]
Accrued liabilities consist of the following at December 31:
 
 
 
2015
 
2014
Salaries and benefits
 
$
6,875

 
$
6,746

Incentive compensation
 
8,302

 
5,405

Value Added Tax accrual
 
993

 
398

Restructuring accrual
 
6,539

 
1,368

Acquisition-related accrual
 
1,604

 

Outside commissions
 
1,023

 
1,146

Other
 
3,612

 
2,287

 
 
$
28,948

 
$
17,350