Goodwil, Long-lived Assets, and Other Charges (Tables)

12 Months Ended

Jan. 31, 2017

Goodwill and Intangible Assets Disclosure [Abstract]

Changes in the carrying amount of goodwill by reporting segment

The changes in the carrying amount of goodwill by reporting unit are shown below:

	Applied Technology			Engineered Films		Aerostar(b)		Vista			Total
Balance at January 31, 2014	$	9,892		$	96	$	789	$	11,497		$	22,274
Acquired goodwill	3,250			27,216		—		—			30,466
Foreign currency translation adjustment	(592		)	—		—		—			(592		)
Balance at January 31, 2015	12,550			27,312		789		11,497			52,148
Purchase price adjustment to acquired goodwill(a)	—			206		—		—			206
Goodwill disposed from sale of business	(69		)	—		—		—			(69		)
Goodwill impairment loss	—			—		—		(11,497		)	(11,497		)
Foreign currency translation adjustment	(116		)	—		—		—			(116		)
Balance at January 31, 2016	12,365			27,518		789		—			40,672
Foreign currency translation adjustment	(23		)	—		—		—			(23		)
Reporting unit transfer balance(b)	—			—		—		—			—
Balance at January 31, 2017	$	12,342		$	27,518	$	789	$	—		$	40,649

^(a) Working capital adjustment and final deferred tax adjustment for Integra acquisition (see Note 5 Acquisitions of and Investments in Businesses and Technologies).

^(b) The Company combined the Aerostar and Vista reporting units in fiscal 2017. No goodwill amount was transferred between reporting units due to the goodwill impairment loss recorded at the Vista reporting unit during fiscal 2016.

Gross carrying amount and related accumulated amortization of definite-lived intangible assets

The following table provides the gross carrying amount and related accumulated amortization of definite-lived intangible assets:

	For the years ended January 31,
	2017							2016							2015
			Accumulated							Accumulated							Accumulated
	Amount		amortization			Net		Amount		amortization			Net		Amount		amortization			Net
Existing technology	$	7,136	$	(6,553	)	$	583	$	7,144	$	(6,265	)	$	879	$	8,870	$	(5,239	)	$	3,631
Customer relationships	12,987		(3,680		)	9,307		12,628		(2,641		)	9,987		14,128		(1,271		)	12,857
Patents and other intangibles	4,378		(2,220		)	2,158		3,967		(1,877		)	2,090		3,657		(1,655		)	2,002
Total	$	24,501	$	(12,453	)	$	12,048	$	23,739	$	(10,783	)	$	12,956	$	26,655	$	(8,165	)	$	18,490

The estimated future amortization expense for identifiable intangible assets

The estimated future amortization expense for these definite-lived intangible assets, as well as definite-lived intangible assets held by SST, during the next five years is as follows:

	2018		2019		2020		2021		2022
Estimated amortization expense	$	1,936	$	1,822	$	1,576	$	1,096	$	1,067