Quarterly report pursuant to Section 13 or 15(d)

Goodwill and intangible assets (Details)

v3.21.2
Goodwill and intangible assets (Details) - USD ($)
$ in Thousands
Oct. 31, 2021
Jul. 31, 2021
Clinical Laboratory Services segment [Member]    
Goodwill and intangible assets (Details) [Line Items]    
Goodwill $ 7,452 $ 7,452