Quarterly report pursuant to Section 13 or 15(d)

Goodwill and intangible assets (Tables)

v3.20.1
Goodwill and intangible assets (Tables)
 9 Months Ended
Apr. 30, 2020
Goodwill and Intangible Assets Disclosure [Abstract]  
Schedule of indefinite-lived intangible assets
    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  
Schedule of intangible assets
    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  
Schedule of useful lives for acquisitions
    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