Income (Loss) Per Share (Computation Of Income (Loss) Per Share) (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Nov. 30, 2021	Nov. 30, 2020
Numerator for basic and diluted loss per share:
Net income (loss)	$ 3,812	$ (892)
Denominator for basic and diluted loss per share:
Basic weighted average shares outstanding	14,246	13,977
Effect of dilutive securities:
Other stock-based awards	66
Diluted weighted average shares outstanding	14,312	13,977
EPS Calculations:
Net income (loss) per share: Basic and diluted	$ 0.27	$ (0.06)