Goodwill and Other Intangible Assets (Tables)

6 Months Ended

Jul. 31, 2021

Goodwill and Intangible Assets Disclosure [Abstract]

Goodwill and Other Intangible Assets

	Weighted Average Life at 7/31/2021	July 31, 2021								January 31, 2021
		Gross Carrying Amount		Accumulated Amortization		Accumulated Impairment		Net Carrying Amount		Gross Carrying Amount		Accumulated Amortization		Impairment		Net Carrying Amount
Goodwill		$	7,060	$	—	$	(7,060)	$	—	$	7,060	$	—	$	(7,060)	$	—
Proprietary rights	6.4	$	8,220	$	(3,920)	$	—	$	4,300	$	7,781	$	(3,688)	$	—	$	4,093
Customer relationships	0.4	5,024		(4,748)		—		276		5,024		(4,513)		—		511
Patents	3.1	2,440		(1,653)		—		787		2,440		(1,528)		—		912
Trade name	4.8	894		(80)		(760)		54		894		(74)		(760)		60
Developed technology	4.4	1,430		(798)		—		632		1,430		(727)		—		703
Other	2.8	684		(278)		—		406		684		(213)		—		471
Amortizable intangible assets		$	18,692	$	(11,477)	$	(760)	$	6,455	$	18,253	$	(10,743)	$	(760)	$	6,750

Future Estimated Amortization Expense Related to Amortizable Intangible Assets

As of July 31, 2021, future estimated amortization expense related to amortizable intangible assets was estimated to be (in thousands):

For fiscal years ending January 31
2022	$	588
2023	1,167
2024	1,032
2025	837
2026	700
Thereafter	2,131
Total	$	6,455