Goodwill & Other Intangibles (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			Total
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	—			—		—		(7,413		)	(7,413		)
Foreign currency translation adjustment	(116		)	—		—		—			(116		)
Balance at January 31, 2016	$	12,365		$	27,518	$	789	$	4,084		$	44,756

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		Amortization			Net		Amount		Amortization			Net		Amount		Amortization			Net
Existing technology	$	8,825	$	(6,487	)	$	2,338	$	8,870	$	(5,239	)	$	3,631	$	7,840	$	(4,164	)	$	3,676
Customer relationships	14,101		(2,794		)	11,307		14,128		(1,271		)	12,857		3,494		(525		)	2,969
Other intangibles	4,065		(1,878		)	2,187		3,657		(1,655		)	2,002		2,891		(1,380		)	1,511
Total	$	26,991	$	(11,159	)	$	15,832	$	26,655	$	(8,165	)	$	18,490	$	14,225	$	(6,069	)	$	8,156

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:

	2017		2018		2019		2020		2021
Estimated amortization expense	$	3,514	$	2,873	$	2,018	$	1,464	$	1,067