Intangible Assets, Net (Tables)

9 Months Ended

Oct. 31, 2021

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of intangible assets

A summary of intangible assets follows:

		October 31, 2021
(amounts in thousands)	Estimated Life	Gross Carrying Amount		Accumulated Amortization		Net carrying amount
Patents	10 years	$	2,717	$	(1,581)	$	1,136
Trademarks	3 years	1,365		(1,156)		209
Other intangibles	5 years	840		(840)		—
Total		$	4,922	$	(3,577)	$	1,345

		January 31, 2021
(amounts in thousands)	Estimated Life	Gross Carrying Amount		Accumulated Amortization		Net carrying amount
Patents	10 years	$	2,387	$	(1,129)	$	1,258
Trademarks	3 years	1,239		(981)		258
Other intangibles	5 years	840		(840)		—
Total		$	4,466	$	(2,950)	$	1,516

Schedule of estimated future amortization expense associated with intangible assets

As of October 31, 2021, estimated future amortization expense associated with intangible assets subject to amortization is as follows:

(amounts in thousands)
Remainder of Fiscal 2022	$	73
2023	219
2024	202
2025	160
2026	141
2027	140
Thereafter	410
	$	1,345