Quarterly report pursuant to Section 13 or 15(d)

Goodwill and intangible assets (Tables)

v3.4.0.3
Goodwill and intangible assets (Tables)
 9 Months Ended
Apr. 30, 2016
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     —       (1,260 )     (1,260 )
Foreign currency translation     4       (15 )     (11 )
April 30, 2016   $ 27,842     $ (22,958 )   $ 4,884  
Schedule of Intangible Assets [Table Text Block] Intangible assets, all finite lived, consist of the following:

    April 30, 2016     July 31, 2015  
    Gross     Accumulated
Amortization 		    Net     Gross     Accumulated
Amortization 		    Net  
Patents   $ 11,027     $ (10,896 )   $ 131     $ 11,028     $ (10,871 )   $ 157  
Customer relationships     12,238       (8,158 )     4,080       12,243       (7,398 )     4,845  
Website and acquired content     1,018       (1,018 )     —       1,020       (1,020 )     —  
Licensed technology and other     504       (447 )     57       518       (441 )     77  
Trademarks     3,055       (2,439 )     616       3,029       (1,953 )     1,076  
Total   $ 27,842     $ (22,958 )   $ 4,884     $ 27,838     $ (21,683 )   $ 6,155  
Schedule of Useful Lives For Acquisitions [Table Text Block] At April 30, 2016, information with respect to intangibles assets acquired is as follows:

    Useful life
assigned 		  Weighted average
remaining useful life 		 
Customer relationships   8-15 years   4.5 years  
Trademarks   5 years   1.5 years  
Other intangibles   10 years   3.5 years