Goodwill and intangible assets

9 Months Ended

Apr. 30, 2019

Goodwill and Intangible Assets Disclosure [Abstract]

Goodwill and Intangible Assets Disclosure [Text Block]

Note 6 – Goodwill and intangible assets

At April 30, 2019 and July 31, 2018, 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, 2018	$	27,347		$	(25,461	)	$	1,886
Amortization expense		—			(741	)		(741	)
Foreign currency translation		(110	)		93			(17	)
April 30, 2019	$	27,237		$	(26,109	)	$	1,128

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

	April 30, 2019							July 31, 2018
	Gross		Accumulated Amortization			Net		Gross		Accumulated Amortization			Net
Patents	$	11,027	$	(10,992	)	$	35	$	11,027	$	(10,980	)	$	47
Customer relationships		11,745		(10,652	)		1,093		11,836		(9,997	)		1,839
Website and acquired content		1,008		(1,008	)		—		1,008		(1,008	)		—
Licensed technology and other		483		(483	)		—		483		(483	)		—
Trademarks		2,974		(2,974	)		—		2,993		(2,993	)		—
Total	$	27,237	$	(26,109	)	$	1,128	$	27,347	$	(25,461	)	$	1,886

At April 30, 2019, information with respect to intangibles assets acquired is as follows:

	Useful life assigned	Weighted average remaining useful life
Customer relationships	8 -15 years	1 year
Other intangibles	10 years	4 years

At April 30, 2019, the weighted average remaining useful life of intangible assets is approximately one year.