Quarterly report pursuant to Section 13 or 15(d)

Goodwill and intangible assets (Tables)

v3.20.2
Goodwill and intangible assets (Tables)
 3 Months Ended
Oct. 31, 2020
Goodwill and Intangible Assets Disclosure [Abstract]  
Schedule of Indefinite-Lived Intangible Assets
    Gross     Accumulated Amortization     Net  
July 31, 2020   $ 27,686     $ (27,148 )   $ 538  
Amortization expense     —       (75 )     (75 )
Foreign currency translation     (64 )     61       (3 )
October 31, 2020   $ 27,622     $ (27,162 )   $ 460  
Schedule of Intangible Assets
    October 31, 2020     July 31, 2020  
    Gross     Accumulated
Amortization		     Net     Gross     Accumulated
Amortization		     Net  
Patents   $ 11,027     $ (11,019 )   $ 8     $ 11,027       (11,014 )   $ 13  
Customer relationships     11,968       (11,516 )     452       12,003       (11,478 )     525  
Website and acquired content     1,020       (1,020 )     —       1,022       (1,022 )     —  
Licensed technology and other     481       (481 )     —       483       (483 )     —  
Trademarks     3,126       (3,126 )     —       3,151       (3,151 )     —  
Total   $ 27,622     $ (27,162 )   $ 460     $ 27,686       (27,148 )   $ 538  
Schedule of Useful Lives For Acquisitions
  Useful life assigned   Weighted average
remaining useful life
Customer relationships   8 -15 years   2 years