Annual report pursuant to Section 13 and 15(d)

Goodwill and intangible assets (Tables)

v3.7.0.1
Goodwill and intangible assets (Tables)
 12 Months Ended
Jul. 31, 2017
Goodwill and Intangible Assets Disclosure [Abstract]  
Schedule of Indefinite-Lived Intangible Assets [Table Text Block] The Company’s change in the net carrying amount of intangible assets, all in the Life Sciences segment is as follows:

    Gross     Accumulated
Amortization 		    Net  
July 31, 2015   $ 27,838     $ (21,683 )   $ 6,155  
Amortization expense     —       (1,677 )     (1,677 )
Foreign currency translation     (188 )     132       (56 )
July 31, 2016   $ 27,650     $ (23,228 )   $ 4,422  
Amortization expense     —       (1,520 )     (1,520 )
Foreign currency translation     (214 )     207       (7 )
July 31, 2017   $ 27,436     $ (24,541 )   $ 2,895  
Schedule of Intangible Assets [Table Text Block] Intangible assets, all finite-lived, consist of the following:

      July 31, 2017     July 31, 2016  
    Gross     Accumulated
Amortization 		    Net     Gross     Accumulated
Amortization 		    Net    
Patents   $ 11,027     $ (10,951)     $ 76     $ 11,027     $ (10,905)     $ 122    
Customer relationships     11,881       (9,083)       2,798       12,122       (8,331)       3,791    
Website and acquired content     1,011       (1,011)       —       1,011       (1,011)       —    
Licensed technology and other     484       (463)       21       485       (437)       48    
Trademarks     3,033       (3,033)       —       3,005       (2,544)       461    
Total   $ 27,436     $ (24,541)     $ 2,895     $ 27,650     $ (23,228)     $ 4,422    
Schedule of Useful Lives For Acquisitions [Table Text Block] At July 31, 2017 information with respect to the intangibles acquired is as follows:

      Useful life
 assigned 		    Weighted average
 remaining useful life 		 
Customer relationships     8-15 years     3 years  
Trademarks     5 years     —  
Other intangibles     10 years     2 years  
Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block] Estimated amortization expense related to these finite-lived intangible assets for the five succeeding fiscal years ending July 31 is as follows:

2018   $ 980  
2019 829  
2020 501  
2021 266  
2022 229