GOODWILL AND INTANGIBLE ASSETS (Tables)

12 Months Ended

Dec. 31, 2015

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of goodwill

The following table summarizes the net carrying amount of goodwill by segment at December 31, 2015 and 2014, respectively:

							Engineering
	Aerostructures						Services						Total
	2015			2014			2015			2014			2015			2014
Balance at December 31,
Gross Goodwill	$	141,953		$	141,953		$	50,741		$	50,741		$	192,694		$	192,694
Accumulated impairment loss	(79,471		)	(79,471		)	(26,439		)	(26,439		)	(105,910		)	(105,910		)
Net Goodwill	$	62,482		$	62,482		$	24,302		$	24,302		$	86,784		$	86,784

Finite and infinite lived intangible assets

Intangible assets primarily consist of trademarks and customer intangibles resulting from the acquisitions of Versaform Corporation, D3, Intec, TASS, and Valent.  The trademarks resulted from the acquisitions of Intec, TASS, and Valent and have a weighted average useful life of 4.5 years.  Customer intangibles have a weighted average useful life of 18.5 years.   Other intangible assets have a weighted average useful life of 5.3 years.  The carrying values were as follows:

	December 31,
	2015			2014
Trademarks	$	778		$	778
Customer intangible assets	68,991			68,991
Other	1,274			1,274
Accumulated amortization	(24,461		)	(20,103		)
Intangible assets, net	$	46,582		$	50,940

Estimated annual amortization expense

The estimated annual amortization expense for intangible assets is as follows:

Year ending December 31,
2016	$	4,134
2017	3,915
2018	3,563
2019	3,263
2020	3,079
Thereafter	28,628
	$	46,582