Quarterly report pursuant to Section 13 or 15(d)

Goodwill and intangible assets (Tables)

v2.4.1.9
Goodwill and intangible assets (Tables)
 9 Months Ended
Apr. 30, 2015
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 of which is included in the Life Sciences segment is as follows:

    Gross     Accumulated Amortization     Net  
July 31, 2014   $ 28,478     $ (20,370 )   $ 8,108  
Amortization expense     —       (1,284 )     (1,284 )
Foreign currency translation     (569 )     403       (166 )
April 30, 2015   $ 27,909     $ (21,251 )   $ 6,658  
Schedule of Intangible Assets [Table Text Block] Intangible assets consist of the following:

    April 30, 2015     July 31, 2014  
    Gross     Accumulated
Amortization		     Net     Gross     Accumulated
Amortization		     Net  
Patents   $ 11,027     $ (10,802 )   $ 225     $ 11,027     $ (10,775 )   $ 252  
Customer relationships     12,278       (7,162 )     5,116       12,602       (6,565 )     6,037  
Website and acquired content     1,023       (1,023 )     —       1,037       (1,037 )     —  
Licensed technology and other     515       (433 )     82       537       (434 )     103  
Trademarks     3,066       (1,831 )     1,235       3,275       (1,559 )     1,716  
Total   $ 27,909     $ (21,251 )   $ 6,658     $ 28,478     $ (20,370 )   $ 8,108  
Schedule of Useful Lives For Acquisitions [Table Text Block] At April 30, 2015, information with respect to intangibles assets acquired is as follows:

    Useful life
assigned (years)		       Weighted average
remaining useful life
    Minimum   Maximum        
Customer relationships   8   15       5.5 years
Trademarks           5   2.5 years
Other intangibles   4   5       0.5 year