Goodwill, Long-lived Assets and Other Intangibles (Tables)

9 Months Ended

Oct. 31, 2019

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Goodwill [Table Text Block]

The changes in the carrying amount of goodwill by reporting unit were as follows:

	Applied Technology		Engineered Films		Aerostar		Total
Balance at January 31, 2019	$	17,076	$	33,232	$	634	$	50,942
Changes due to business combinations	(33)		—		—		(33)
Foreign currency translation adjustment	(75)		—		—		(75)
Balance at October 31, 2019	$	16,968	$	33,232	$	634	$	50,834

Schedule of Finite-Lived Intangible Assets [Table Text Block]

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

	October 31, 2019						January 31, 2019
			Accumulated						Accumulated
	Amount		amortization		Net		Amount		amortization		Net
Existing technology	$	9,174	$	(7,591)	$	1,583	$	9,203	$	(7,216)	$	1,987
Customer relationships	16,073		(6,529)		9,544		15,791		(5,508)		10,283
Patents and other intangibles	6,102		(2,296)		3,806		5,908		(1,885)		4,023
Total	$	31,349	$	(16,416)	$	14,933	$	30,902	$	(14,609)	$	16,293