GOODWILL AND INTANGIBLE ASSETS (Tables)

12 Months Ended

Dec. 31, 2016

Goodwill and Intangible Assets Disclosure [Abstract]

Summary of detail and activity of goodwill by segment

Detail and activity of goodwill by segment is presented below (in thousands):

	MMS			ATA			Total
Goodwill	$	32,434		$	6,698		$	39,132
Accumulated impairment losses	(32,434		)	—			(32,434		)
Balance at December 31, 2014	—			6,698			6,698
Currency translation adjustments	—			(78		)	(78		)
Goodwill	32,434			6,620			39,054
Accumulated impairment losses	(32,434		)	—			(32,434		)
Balance at December 31, 2015	—			6,620			6,620
Currency translation adjustments	—			(41		)	(41		)
Goodwill	32,434			6,579			39,013
Accumulated impairment losses	(32,434		)	—			(32,434		)
Balance at December 31, 2016	$	—		$	6,579		$	6,579

Summary of the major components of intangible assets other than goodwill

The major components of intangible assets other than goodwill are as follows (in thousands):

	December 31, 2016			December 31, 2015
Gross amortizable intangible assets:
Technical know-how	$	12,944		$	12,956
Customer lists	8,981			9,011
Land rights	2,498			2,672
Patents, trade names, drawings, and other	4,356			4,393
Total gross amortizable intangible assets	28,779			29,032
Accumulated amortization:
Technical know-how	(7,438		)	(6,833		)
Customer lists	(1,744		)	(1,315		)
Land rights	(304		)	(271		)
Patents, trade names, drawings, and other	(3,490		)	(3,406		)
Total accumulated amortization	(12,976		)	(11,825		)
Amortizable intangible assets, net	15,803			17,207
Indefinite lived intangible assets:
Trade names	10,927			10,811
Intangible assets other than goodwill, net	$	26,730		$	28,018

Schedule of finite-lived intangible asset amortization expense

Amortization expense related to the definite-lived intangible assets are as follows (in thousands):

	Year Ended December 31,
	2016		2015		2014
Amortization expense	$	1,282	$	1,804	$	1,810

Schedule of finite-lived intangible assets, future amortization expense

Estimated amortization expense for each of the five succeeding fiscal years and thereafter is as follows (in thousands):

Fiscal Year	Future Estimated Amortization
2017	$	1,247
2018	1,091
2019	1,073
2020	1,031
2021	1,013
Thereafter	10,348