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

12 Months Ended

Jan. 31, 2018

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			Total
Balance at January 31, 2016	$	12,365		$	27,518	$	789		$	40,672
Foreign currency translation adjustment	(23		)	—		—			(23		)
Reporting unit transfer balance(a)	—			—		—			—
Balance at January 31, 2017	12,342			27,518		789			40,649
Additions due to business combinations	—			5,714		—			5,714
Divestiture of business	—			—		(52		)	(52		)
Foreign currency translation adjustment	399			—		—			399
Balance at January 31, 2018	$	12,741		$	33,232	$	737		$	46,710

^(a) 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.

Goodwill Gross of Impairment

Goodwill gross and net of accumulated impairment losses were as follows:

	As of January 31,
	2018			2017
Gross goodwill	$	58,207		$	52,146
Accumulated impairment loss	(11,497		)	(11,497		)
Net goodwill	$	46,710		$	40,649

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,
	2018							2017
			Accumulated							Accumulated
	Amount		amortization			Net		Amount		amortization			Net
Existing technology	$	7,290	$	(6,996	)	$	294	$	7,136	$	(6,553	)	$	583
Customer relationships	13,264		(4,834		)	8,430		12,987		(3,680		)	9,307
Patents and other intangibles	4,241		(2,381		)	1,860		4,378		(2,220		)	2,158
Total	$	24,795	$	(14,211	)	$	10,584	$	24,501	$	(12,453	)	$	12,048

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 accounted for as part of the equity method investment in SST, during the next five years is as follows:

	2019		2020		2021		2022		2023
Estimated amortization expense	$	1,988	$	1,578	$	1,163	$	1,111	$	1,013