Leases (Schedule Of Future Minimum Rental Payments Receivable) (Details) (USD $) In Thousands, unless otherwise specified	Aug. 31, 2013	Aug. 31, 2012
Leases [Abstract]
Operating, 2014	$ 6,173
Operating, 2015	6,371
Operating, 2016	6,280
Operating, 2017	6,304
Operating, 2018	6,283
Operating, Thereafter	47,334
Operating, Total	78,745
Direct Financing, 2014	407
Direct Financing, 2015	896
Direct Financing, 2016	174
Direct Financing, 2017	133
Direct Financing, 2018	65
Direct Financing, Thereafter	26
Direct Financing, Total	1,701	1,041
Unearned income, Direct Financing	(170)	(228)
Net investment in direct financing leases	$ 1,531	$ 813