Quarterly report pursuant to Section 13 or 15(d)

Goodwill and intangible assets (Details) - Schedule of useful lives for acquisitions

v2.4.0.8
Goodwill and intangible assets (Details) - Schedule of useful lives for acquisitions
 3 Months Ended
Oct. 31, 2014
Customer Relationships [Member] | Minimum [Member]
  
Goodwill and intangible assets (Details) - Schedule of useful lives for acquisitions [Line Items]  
Useful life assigned 8 years
Customer Relationships [Member] | Maximum [Member]
  
Goodwill and intangible assets (Details) - Schedule of useful lives for acquisitions [Line Items]  
Useful life assigned 15 years
Customer Relationships [Member]
  
Goodwill and intangible assets (Details) - Schedule of useful lives for acquisitions [Line Items]  
Weighted average remaining useful life 6 years
Trademarks [Member]
  
Goodwill and intangible assets (Details) - Schedule of useful lives for acquisitions [Line Items]  
Useful life assigned 5 years
Weighted average remaining useful life 3 years
Other Intangible Assets [Member] | Minimum [Member]
  
Goodwill and intangible assets (Details) - Schedule of useful lives for acquisitions [Line Items]  
Useful life assigned 4 years
Other Intangible Assets [Member] | Maximum [Member]
  
Goodwill and intangible assets (Details) - Schedule of useful lives for acquisitions [Line Items]  
Useful life assigned 5 years
Other Intangible Assets [Member]
  
Goodwill and intangible assets (Details) - Schedule of useful lives for acquisitions [Line Items]  
Weighted average remaining useful life 1 year