Goodwill and Other Intangible Assets (Tables)

6 Months Ended

Jul. 31, 2019

Goodwill and Intangible Assets Disclosure [Abstract]

Goodwill and Other Intangible Assets

	Weighted Average Life at 7/31/2019	July 31, 2019										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	7.5	$	9,295	$	(4,611	)	$	—		$	4,684	$	9,303	$	(4,292	)	$	—		$	5,011
Customer relationships	2.3	5,024		(3,489		)	—			1,535		5,024		(3,147		)	—			1,877
Patents	5.0	2,440		(1,152		)	—			1,288		2,441		(1,028		)	—			1,413
Trade name	6.8	894		(58		)	—			836		894		(52		)	—			842
Developed technology	6.4	1,430		(512		)	—			918		1,430		(441		)	—			989
Other	4.7	692		(44		)	—			648		385		(22		)	—			363
Amortizable intangible assets		$	19,775	$	(9,866	)	$	—		$	9,909	$	19,477	$	(8,982	)	$	—		$	10,495

Future Estimated Amortization Expense Related to Amortizable Intangible Assets

As of July 31, 2019, future estimated amortization expense related to amortizable intangible assets was estimated to be (in thousands):

For fiscal years ending January 31
2020	$	961
2021	1,775
2022	1,245
2023	1,141
2024	938
Thereafter	3,849
Total	$	9,909