Quarterly report pursuant to Section 13 or 15(d)

Goodwill and intangible assets (Tables)

v3.21.1
Goodwill and intangible assets (Tables)
 9 Months Ended
Apr. 30, 2021
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     —       (244 )     (244 )
Foreign currency translation     88       (67 )     21  
April 30, 2021   $ 27,774     $ (27,459 )   $ 315  
Schedule of Intangible Assets
    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  
Schedule of Useful Lives For Acquisitions
  Useful life assigned     Weighted average
remaining useful life		  
Customer relationships   8 -15 years     1 year