Goodwill and Intangible Assets (Tables)

12 Months Ended

Jan. 31, 2016

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 (exc. Vista)		Vista (As Restated)			Total (As Restated)
Balance at January 31, 2013	$	9,892		$	96	$	789	$	11,497		$	22,274
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

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

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,
	2016							2015							2014
			Accumulated							Accumulated							Accumulated
	Amount (As Restated)		Amortization (As Restated)			Net (As Restated)		Amount		Amortization			Net		Amount		Amortization			Net
Existing technology	$	7,144	$	(6,265	)	$	879	$	8,870	$	(5,239	)	$	3,631	$	7,840	$	(4,164	)	$	3,676
Customer relationships	12,628		(2,641		)	9,987		14,128		(1,271		)	12,857		3,494		(525		)	2,969
Other intangibles	3,967		(1,877		)	2,090		3,657		(1,655		)	2,002		2,891		(1,380		)	1,511
Total	$	23,739	$	(10,783	)	$	12,956	$	26,655	$	(8,165	)	$	18,490	$	14,225	$	(6,069	)	$	8,156

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:

	2017		2018		2019		2020		2021
Estimated amortization expense (As Restated)	$	2,081	$	1,819	$	1,704	$	1,456	$	1,060