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GOODWILL AND INTANGIBLE ASSETS
6 Months Ended
Jun. 30, 2017
Goodwill and Intangible Assets Disclosure [Abstract]  
GOODWILL AND INTANGIBLE ASSETS
GOODWILL AND INTANGIBLE ASSETS
 
Detail and activity of goodwill by segment is presented below (in thousands):
 
MMS
 
ATA
 
Total
Goodwill
$
32,434

 
$
6,579

 
$
39,013

Accumulated impairment losses
(32,434
)
 

 
(32,434
)
Balance at December 31, 2016

 
6,579

 
6,579

 
 
 
 
 
 
Goodwill
32,434

 
6,579

 
39,013

Currency translation adjustments

 
79

 
79

Accumulated impairment losses
(32,434
)
 

 
(32,434
)
Balance at June 30, 2017
$

 
$
6,658

 
$
6,658



    
The major components of intangible assets other than goodwill are as follows (in thousands):
 
June 30,
2017
 
December 31,
2016
Gross amortizable intangible assets:
 

 
 

Technical know-how
$
12,985

 
$
12,944

Customer lists
9,016

 
8,981

Land rights
2,559

 
2,498

Patents, trade names, drawings, and other
4,391

 
4,356

Total gross amortizable intangible assets
28,951

 
28,779

 
 
 
 
Accumulated amortization:
 

 
 

Technical know-how
(7,758
)
 
(7,438
)
Customer lists
(1,976
)
 
(1,744
)
Land rights
(337
)
 
(304
)
Patents, trade names, drawings, and other
(3,587
)
 
(3,490
)
Total accumulated amortization
(13,658
)
 
(12,976
)
Amortizable intangible assets, net
15,293

 
15,803

 
 
 
 
Indefinite lived intangible assets:
 

 
 

Trade names
11,405

 
10,927

 
 
 
 
Intangible assets other than goodwill, net
$
26,698

 
$
26,730



Amortization expense related to the definite-lived intangible assets are as follows (in thousands):
 
Three Months Ended 
 June 30,
 
Six Months Ended 
 June 30,
 
2017
 
2016
 
2017
 
2016
Amortization expense
$
312

 
$
320

 
$
624

 
$
640