Goodwill and Other Intangible Assets (Tables)

9 Months Ended

Oct. 31, 2019

Goodwill and Intangible Assets Disclosure [Abstract]

Goodwill and Other Intangible Assets

	Weighted Average Life at 10/31/2019	October 31, 2019										January 31, 2019
		Gross Carrying Amount		Accumulated Amortization			Impairment			Net Carrying Amount		Gross Carrying Amount		Accumulated Amortization			Impairment			Net Carrying Amount
				(in thousands)										(in thousands)
Goodwill		$	7,060	$	—		$	(4,529	)	$	2,531	$	7,060	$	—		$	(4,529	)	$	2,531
Proprietary rights	7.2	$	9,293	$	(4,766	)	$	—		$	4,527	$	9,303	$	(4,292	)	$	—		$	5,011
Customer relationships	2.1	5,024		(3,660		)	—			1,364		5,024		(3,147		)	—			1,877
Patents	4.8	2,440		(1,215		)	—			1,225		2,441		(1,028		)	—			1,413
Trade name	6.6	894		(60		)	—			834		894		(52		)	—			842
Developed technology	6.2	1,430		(548		)	—			882		1,430		(441		)	—			989
Other	4.6	680		(59		)	—			621		385		(22		)	—			363
Amortizable intangible assets		$	19,761	$	(10,308	)	$	—		$	9,453	$	19,477	$	(8,982	)	$	—		$	10,495

Future Estimated Amortization Expense Related to Amortizable Intangible Assets

As of October 31, 2019, future estimated amortization expense related to amortizable intangible assets was estimated to be (in thousands):

For fiscal years ending January 31
2020	$	498
2021	1,762
2022	1,242
2023	1,138
2024	934
Thereafter	3,879
Total	$	9,453