Other Intangible Assets (Schedule Of Amortizable Intangible Assets) (Details) - USD ($)	6 Months Ended
	Jan. 31, 2016	Jan. 31, 2015	Jul. 31, 2015	Jul. 31, 2014
Customer Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Amortizable Intangible Assets, Cost Basis	$ 11,727	$ 9,854	$ 11,947	$ 7,174
Amortizable Intangible Assets, Accumulated Amortization			(4,418)	(3,584)
Amortizable Intangible Assets, Net Value	6,744	5,910	7,529	3,590
Amortization	(4,983)	(3,944)
Activity, Cost Basis	(220)	2,680
Activity, Accumulated Amortization	(565)	(360)
Activity, Net Value	$ (785)	$ 2,320
Weighted average remaining life	12 years 1 month 17 days	12 years 5 months 27 days
Other Intangibles [Member]
Finite-Lived Intangible Assets [Line Items]
Amortizable Intangible Assets, Cost Basis	$ 2,736	$ 1,783	3,203	383
Amortizable Intangible Assets, Accumulated Amortization			(616)	(361)
Amortizable Intangible Assets, Net Value	1,916	1,323	2,587	22
Amortization	(820)	(460)
Activity, Cost Basis	(467)	1,400
Activity, Accumulated Amortization	(204)	(99)
Activity, Net Value	$ (671)	$ 1,301
Weighted average remaining life	8 years 11 months 1 day	2 years 18 days
Total Intangibles [Member]
Finite-Lived Intangible Assets [Line Items]
Amortizable Intangible Assets, Cost Basis	$ 14,463	$ 11,637	15,150	7,557
Amortizable Intangible Assets, Accumulated Amortization			(5,034)	(3,945)
Amortizable Intangible Assets, Net Value	8,660	7,233	$ 10,116	$ 3,612
Amortization	(5,803)	(4,404)
Activity, Cost Basis	(687)	4,080
Activity, Accumulated Amortization	(769)	(459)
Activity, Net Value	$ (1,456)	$ 3,621
Weighted average remaining life	11 years 5 months 1 day	11 years 10 months 17 days