Goodwill and Other Intangible Assets (Tables)

6 Months Ended

Jul. 31, 2020

Goodwill and Intangible Assets Disclosure [Abstract]

Goodwill and Other Intangible Assets

	Weighted Average Life at 7/31/2020	July 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	6.6	$	9,265	$	(5,286)	$	—	$	3,979	$	9,247	$	(4,950)	$	—	$	4,297
Customer relationships	1.3	5,024		(4,173)		—		851		5,024		(3,831)		—		1,193
Patents	4.0	2,440		(1,401)		—		1,039		2,440		(1,277)		—		1,163
Trade name	5.8	894		(69)		(760)		65		894		(63)		(760)		71
Developed technology	5.4	1,430		(655)		—		775		1,430		(584)		—		846
Other	3.9	666		(134)		—		532		653		(87)		—		566
Amortizable intangible assets		$	19,719	$	(11,718)	$	(760)	$	7,241	$	19,688	$	(10,792)	$	(760)	$	8,136

Future Estimated Amortization Expense Related to Amortizable Intangible Assets

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

For fiscal years ending January 31
2021	$	857
2022	1,163
2023	1,015
2024	931
2025	658
Thereafter	2,617
Total	$	7,241