PURCHASED INTANGIBLE ASSETS (Tables)

12 Months Ended

Jan. 31, 2020

PURCHASED INTANGIBLE ASSETS

Schedule of changes in the balances of goodwill

	GPS		TRC		APC		Totals
Balances, February 1, 2017	$	18,476	$	14,365	$	2,072	$	34,913
Impairment loss		—		(584)		—		(584)
Balances, January 31, 2018		18,476		13,781		2,072		34,329
Impairment loss		—		(1,491)		—		(1,491)
Balances, January 31, 2019		18,476		12,290		2,072		32,838
Impairment losses		—		(2,823)		(2,072)		(4,895)
Balances, January 31, 2020	$	18,476	$	9,467	$	—	$	27,943

Schedule of company's purchased intangible assets, other than goodwill

		2020						2019
	Estimated	Gross		Accumulated		Net		Net
	Useful Life	Amounts		Amortization		Amounts		Amounts
Trade names
TRC	15 years	$	4,499	$	1,250	$	3,249	$	3,549
GPS	15 years		3,643		3,193		450		694
SMC	—		181		181		—		181
Process certifications	7 years		1,897		1,129		768		1,039
Customer relationships	4-10 years		1,346		812		534		674
Totals		$	11,566	$	6,565	$	5,001	$	6,137

Schedule of expected amortization expense

The future amounts of amortization related to purchased intangibles are presented below for the years ending January 31,

2021	$	905
2022		870
2023		617
2024		392
2025		391
Thereafter		1,826
Total	$	5,001