Goodwill and intangible assets

9 Months Ended

Apr. 30, 2021

Goodwill and Intangible Assets Disclosure [Abstract]

Goodwill and intangible assets

Note 6 – Goodwill and intangible assets

Goodwill

The Company’s net carrying amount of goodwill is in the Clinical Laboratory Services segment and is $7,452 as of April 30, 2021 and 2020.

Intangible assets

The Company’s change in the net carrying amount of intangible assets, all in the Life Sciences Products segment is as follows:

	Gross		Accumulated Amortization			Net
July 31, 2020	$	27,686	$	(27,148	)	$	538
Amortization expense		—		(244	)		(244	)
Foreign currency translation		88		(67	)		21
April 30, 2021	$	27,774	$	(27,459	)	$	315

Intangible assets, all finite-lived, consist of the following:

	April 30, 2021							July 31, 2020
	Gross		Accumulated Amortization			Net		Gross		Accumulated Amortization			Net
Patents	$	11,027	$	(11,027	)	$	—	$	11,027		(11,014	)	$	13
Customer relationships		12,058		(11,743	)		315		12,003		(11,478	)		525
Website and acquired content		1,025		(1,025	)		—		1,022		(1,022	)		—
Licensed technology and other		494		(494	)		—		483		(483	)		—
Trademarks		3,170		(3,170	)		—		3,151		(3,151	)		—
Total	$	27,774	$	(27,459	)	$	315	$	27,686		(27,148	)	$	538

At April 30, 2021, information with respect to acquired intangibles is as follows:

	Useful life assigned	Weighted average remaining useful life
Customer relationships	8 -15 years	1 year

At April 30, 2021, the weighted average remaining useful life of all intangible assets was approximately one year.