Description Of The Business And Significant Accounting Policies (Schedule Of Supplemental Cash Flow Information) (Details) - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Jul. 31, 2016	Jul. 31, 2015
Description Of The Business And Significant Accounting Policies [Abstract]
Issuance of common stock related to payment of contingent liabilities	$ 60	$ 42
Tax benefit of stock options exercised		$ 48
Cashless exercise of common stock warrants	46
Issuance of common stock in connection with acquisitions		3,280
Debt issued in connection with acquisition	64	$ 4,933
Capital leases acquired in connection with acquisitions		105
Current assets acquired in connection with acquisitions	41	1,177
Accrued liabilities assumed in connection with acquisitions	(58)	989
Equipment and leasehold improvements acquired in connection with acquisitions	(125)	629
Capitalized software product costs acquired in connection with acquisitions	234	1,718
Goodwill and intangible assets acquired in connection with acquisitions	(217)	6,694
Contingent liabilities incurred in connection with acquisition	$ 62	$ 911