Goodwill and Other Intangible Assets (Tables)

12 Months Ended

Jan. 31, 2020

Goodwill and Intangible Assets Disclosure [Abstract]

Goodwill and Other Intangible Assets

	Weighted Average Life at 1/31/20	January 31, 2020										January 31, 2019
		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	$	—		$	(4,529	)	$	2,531	$	7,060	$	—		$	(4,529	)	$	2,531
Proprietary rights	7.0	$	9,293	$	(4,971	)	—			4,322		$	9,303	$	(4,292	)	—			5,011
Customer relationships	1.8	5,024		(3,831		)	—			1,193		5,024		(3,147		)	—			1,877
Patents	4.5	2,440		(1,277		)	—			1,163		2,441		(1,028		)	—			1,413
Trade name	6.3	894		(63		)	(760		)	71		894		(52		)	—			842
Developed technology	5.9	1,430		(584		)	—			846		1,430		(441		)	—			989
Other	4.3	653		(87		)	—			566		385		(22		)	—			363
Amortizable intangible assets		$	19,734	$	(10,813	)	$	(760	)	$	8,161	$	19,477	$	(8,982	)	$	—		$	10,495

Future Estimated Amortization Expense Related to Amortizable Intangible Assets

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

For fiscal years ending January 31:
2021	$	1,733
2022	1,256
2023	1,088
2024	976
2025	746
Thereafter	2,362
Total	$	8,161