Goodwill and intangible assets

9 Months Ended

Apr. 30, 2020

Goodwill and Intangible Assets Disclosure [Abstract]

Goodwill and intangible assets

Note 6 – Goodwill and intangible assets

At April 30, 2020 and July 31, 2019, the Company has goodwill of $7,452 allocated to the Clinical Services reporting unit.

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

	Gross		Accumulated Amortization			Net
July 31, 2019	$	27,238	$	(26,206	)	$	1,032
Amortization expense		—		(451	)		(451	)
Foreign currency translation		47		(40	)		7
April 30, 2020	$	27,285	$	(26,697	)	$	588

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

	April 30, 2020							July 31, 2019
	Gross		Accumulated Amortization			Net		Gross		Accumulated Amortization			Net
Patents	$	11,027	$	(11,010	)	$	17	$	11,027	$	(10,996	)	$	31
Customer relationships		11,791		(11,220	)		571		11,746		(10,745	)		1,001
Website and acquired content		1,009		(1,009	)		—		1,008		(1,008	)		—
Licensed technology and other		475		(475	)		—		483		(483	)		—
Trademarks		2,983		(2,983	)		—		2,974		(2,974	)		—
Total	$	27,285	$	(26,697	)	$	588	$	27,238	$	(26,206	)	$	1,032

At April 30, 2020, information with respect to intangibles assets acquired is as follows:

	Useful life assigned	Weighted average remaining useful life
Customer relationships	8 -15 years	Less than 1 year
Other intangibles	10 years	Less than 2 years

At April 30, 2020, the weighted average remaining useful life of intangible assets is approximately one year.