Goodwill and Other Intangible Assets (Tables)

9 Months Ended

Oct. 31, 2020

Goodwill and Intangible Assets Disclosure [Abstract]

Goodwill and Other Intangible Assets

	Weighted Average Life at 10/31/2020	October 31, 2020								January 31, 2020
		Gross Carrying Amount		Accumulated Amortization		Impairment		Net Carrying Amount		Gross Carrying Amount		Accumulated Amortization		Impairment		Net Carrying Amount
Goodwill		$	7,060	$	—	$	(7,060)	$	—	$	7,060	$	—	$	(4,529)	$	2,531
Proprietary rights	7.8	$	7,430	$	(3,547)	$	—	$	3,883	$	9,247	$	(4,950)	$	—	$	4,297
Customer relationships	1.1	5,024		(4,344)		—		680		5,024		(3,831)		—		1,193
Patents	3.8	2,440		(1,463)		—		977		2,440		(1,277)		—		1,163
Trade name	5.6	894		(72)		(760)		62		894		(63)		(760)		71
Developed technology	5.2	1,430		(691)		—		739		1,430		(584)		—		846
Other	3.6	666		(176)		—		490		653		(87)		—		566
Amortizable intangible assets		$	17,884	$	(10,293)	$	(760)	$	6,831	$	19,688	$	(10,792)	$	(760)	$	8,136

Future Estimated Amortization Expense Related to Amortizable Intangible Assets

As of October 31, 2020, future estimated amortization expense related to amortizable intangible assets was estimated to be (in thousands):

For fiscal years ending January 31
2021	$	423
2022	1,232
2023	1,087
2024	1,003
2025	730
Thereafter	2,356
Total	$	6,831