Goodwill & Other Intangibles (Tables)

12 Months Ended

Jan. 31, 2012

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 segment are shown below:

	Applied Technology		Engineered Films		Aerostar		Electronic Systems		Total
Balance at January 31, 2009	$	6,457	$	96	$	464	$	433	$	7,450
Acquisition earn-outs	515		—		—		—		515
Acquired goodwill	2,734		—		—		—		2,734
Balance at January 31, 2010	9,706		96		464		433		10,699
Acquisition earn-outs	78		—		—		—		78
Balance at January 31, 2011	9,784		96		464		433		10,777
Acquired goodwill	—		—		11,497		—		11,497
Balance at January 31, 2012	$	9,784	$	96	$	11,961	$	433	$	22,274

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
	2012							2011							2010
			Accumulated							Accumulated							Accumulated
	Amount		Amortization			Net		Amount		Amortization			Net		Amount		Amortization			Net
Existing technology	$	7,500	$	(2,637	)	$	4,863	$	3,200	$	(2,159	)	$	1,041	$	3,200	$	(1,681	)	$	1,519
Customer relationships	3,494		(155		)	3,339		234		(128		)	106		234		(99		)	135
Other intangibles	2,225		(1,015		)	1,210		1,426		(988		)	438		1,399		(868		)	531
Total	$	13,219	$	(3,807	)	$	9,412	$	4,860	$	(3,275	)	$	1,585	$	4,833	$	(2,648	)	$	2,185

The estimated future amortization expense for identifiable intangible assets

he estimated future amortization expense for identifiable intangible assets during the next five years is as follows:

	2013		2014		2015		2016		2017
Estimated amortization expense	$	1,470	$	1,563	$	1,998	$	2,193	$	1,983