Income Taxes (Benefit (Provision) For Income Taxes From Continuing Operations) (Details) - USD ($) $ in Thousands	12 Months Ended
Aug. 31, 2018	Aug. 31, 2017	Aug. 31, 2016
Income Taxes [Abstract]
Current, Federal	$ 29	$ 69	$ (380)
Current, State	210	(71)	(197)
Current, Foreign	(2,947)	(2,320)	(2,553)
Current	(2,708)	(2,322)	(3,130)
Deferred, Federal	1,426	(1,227)	(1,584)
Deferred, State	(314)	(17)	70
Deferred, Foreign	(281)	468	50
Operating loss carryforward	2,636	6,964
Adjustment for changes in U.S. income tax rates	1,654
Valuation allowance	(2,780)	(129)	(301)
Deferred	2,341	6,059	(1,765)
Benefit (provision) for income taxes	$ (367)	$ 3,737	$ (4,895)

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