Goodwill and Other Intangible Assets (Tables)

12 Months Ended

Jan. 31, 2021

Goodwill and Intangible Assets Disclosure [Abstract]

Goodwill and Other Intangible Assets

Goodwill and other intangible assets from continuing operations consisted of the following:

	Weighted Average Life at 1/31/20	January 31, 2021								January 31, 2020
		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	$	—	$	(7,060)	$	—	$	7,060	$	—	$	(4,529)	$	2,531
Proprietary rights	7.2	$	7,781	$	(3,688)	—		4,093		$	9,247	$	(4,950)	—		4,297
Customer relationships	0.8	5,024		(4,513)		—		511		5,024		(3,831)		—		1,193
Patents	3.6	2,440		(1,528)		—		912		2,440		(1,277)		—		1,163
Trade name	5.3	894		(74)		(760)		60		894		(63)		(760)		71
Developed technology	4.9	1,430		(727)		—		703		1,430		(584)		—		846
Other	3.4	684		(213)		—		471		653		(87)		—		566
Amortizable intangible assets		$	18,253	$	(10,743)	$	(760)	$	6,750	$	19,688	$	(10,792)	$	(760)	$	8,136

Future Estimated Amortization Expense Related to Amortizable Intangible Assets

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

For fiscal year ending January 31:
2022	$	1,266
2023	1,125
2024	989
2025	828
2026	658
Thereafter	1,884
Total	$	6,750