Description Of The Business And Significant Accounting Policies (Schedule Of Supplemental Cash Flow Information) (Details) $ in Thousands	3 Months Ended
	Oct. 31, 2015 USD ($)
Description Of The Business And Significant Accounting Policies [Abstract]
Issuance of common stock related to payment of contingent liabilities	$ 60
Cashless exercise of common stock warrants	46
Current assets acquired in connection with acquisitions	32
Accrued liabilities assumed in connection with acquisitions	53
Contingent liabilities incurred in connection with acquisition	$ (62)