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Note 10 - Goodwill
 12 Months Ended
Dec. 31, 2016
Notes to Financial Statements  
Goodwill Disclosure [Text Block]
10.
Goodwill
 
    Americas   EMEA   Asia
Pacific		   Consolidated
                 
Balance, December 31, 2014   $
69,820
      
167,304
      
48,997
      
286,121
  
Goodwill acquired during the year    
39,627
      
3,322
      
424
      
43,373
  
Goodwill disposed during the year    
-
      
(111
 )    
-
      
(111
 )
Foreign exchange    
(2,650
 )    
(16,159
 )    
(4,894
 )    
(23,703
 )
Balance, December 31, 2015    
106,797
      
154,356
      
44,527
      
305,680
  
Goodwill acquired during the year    
19,665
      
33,289
      
-
      
52,954
  
Other items    
(603
 )    
(266
 )    
-
      
(869
 )
Foreign exchange    
558
      
(10,236
 )    
(81
 )    
(9,759
 )
Balance, December 31, 2016    
126,417
      
177,143
      
44,446
      
348,006
  
Goodwill    
152,688
      
180,455
      
44,446
      
377,589
  
Accumulated impairment loss    
(26,271
 )    
(3,312
 )    
-
      
(29,583
 )
    $
126,417
     $
177,143
     $
44,446
     $
348,006
  
 
A test for goodwill impairment is required to be completed annually, in the Company’s case as of
August
1,
or more frequently if events or changes in circumstances indicate the asset might be impaired.
No
goodwill impairments were identified in
2016,
2015
or
2014.
The accumulated impairment loss reflects a goodwill impairment incurred in
2009.