Income Taxes (Schedule Of Deferred Tax Assets And Liabilities) (Details) - USD ($) $ in Thousands	Aug. 31, 2020	Aug. 31, 2019
Income Taxes [Abstract]
Accrued payroll and related expenses	$ 891	$ 794
Accounts receivable	267	325
Reserves and accruals	1,079	1,145
Stock-based compensation expense	2,162	1,990
Lease Accounting	828
Uniform capitalization	954	1,084
Tax credit carryforwards	3,374	2,827
Other	1,170	1,034
Total gross deferred tax assets	10,725	9,199
Valuation allowance	(3,442)	(2,827)
Total net deferred tax assets	7,283	6,372
Property and equipment, net	(1,515)	(1,609)
Amortization of tax goodwill and intangible assets	(15,205)	(15,373)
Lease Accounting	(808)
Other	(582)	(675)
Total deferred tax liabilities	(18,110)	(17,657)
Net deferred tax liabilities	$ (10,827)	$ (11,285)