Goodwill and Other Intangible Assets

3 Months Ended

Apr. 30, 2021

Goodwill and Intangible Assets Disclosure [Abstract]


	Weighted Average Life at 4/30/2021	April 30, 2021								January 31, 2021
		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	$	—	$	(7,060)	$	—
Proprietary rights	7.0	$	7,784	$	(3,807)	$	—	$	3,977	$	7,781	$	(3,688)	$	—	$	4,093
Customer relationships	0.6	5,024		(4,677)		—		347		5,024		(4,513)		—		511
Patents	3.3	2,440		(1,590)		—		850		2,440		(1,528)		—		912
Trade name	5.1	894		(77)		(760)		57		894		(74)		(760)		60
Developed technology	4.7	1,430		(762)		—		668		1,430		(727)		—		703
Other	3.1	684		(246)		—		438		684		(213)		—		471
Amortizable intangible assets		$	18,256	$	(11,159)	$	(760)	$	6,337	$	18,253	$	(10,743)	$	(760)	$	6,750

As of January 31, 2021, the Company has recorded impairment expense equal to 100% of the gross carrying amount of goodwill. As a result, no further review of goodwill is required. On January 31, 2021, the Company completed an annual review of intangible assets. Based on a review of qualitative factors it was determined it was more likely than not that the carrying value of intangible assets was greater than its fair market value. During the three months ended April 30, 2021 there have been no substantive indicators of impairment.

Aggregate amortization expense was $412,000 and $460,000 for the three months ended April 30, 2021 and 2020, respectively. As of April 30, 2021, future estimated amortization expense related to amortizable intangible assets was estimated to be (in thousands):


For fiscal years ending January 31
2022	$	896
2023	1,125
2024	989
2025	795
2026	658
Thereafter	1,874
Total	$	6,337