Quarterly report pursuant to Section 13 or 15(d)

Goodwill and intangible assets (Tables)

v3.8.0.1
Goodwill and intangible assets (Tables)
 3 Months Ended
Oct. 31, 2017
Goodwill and Intangible Assets Disclosure [Abstract]  
Schedule of Indefinite-Lived Intangible Assets [Table Text Block] The Company’s change in the carrying amount of intangible assets, all in the Life Sciences segment is as follows:

    Gross     Accumulated Amortization     Net  
July 31, 2017   $ 27,436     $ (24,541 )   $ 2,895  
Amortization expense     —       (228 )     (228 )
Foreign currency translation     (118 )     98       (20 )
October 31, 2017   $ 27,318     $ (24,671 )   $ 2,647  
Schedule of Intangible Assets [Table Text Block] Intangible assets, all finite lived, consist of the following:

    October 31, 2017     July 31, 2017  
    Gross     Accumulated
Amortization		     Net     Gross     Accumulated
Amortization		     Net  
Patents   $ 11,026     $ (10,957 )   $ 69     $ 11,027     $ (10,951 )   $ 76  
Customer relationships     11,823       (9,260 )     2,563       11,881       (9,083 )     2,798  
Website and acquired content     1,007       (1,007 )     —       1,011       (1,011 )     —  
Licensed technology and other     485       (470 )     15       484       (463 )     21  
Trademarks     2,977       (2,977 )     —       3,033       (3,033 )     —  
Total   $ 27,318     $ (24,671 )   $ 2,647     $ 27,436     $ (24,541 )   $ 2,895  
Schedule of Useful Lives For Acquisitions [Table Text Block] At October 31, 2017, information with respect to intangibles assets acquired is as follows:

    Useful life
assigned		   Weighted average
remaining useful life
Customer relationships   8 -15 years   3 years
Other intangibles   10 years   2 years