Net Income Per Share (Computation Of Net Income Per Share) (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	May 31, 2022	May 31, 2021	May 31, 2022	May 31, 2021
Numerator for basic and diluted loss per share:
Net income	$ 7,162	$ 12,754	$ 12,852	$ 11,816
Denominator for basic and diluted loss per share:
Basic weighted average shares outstanding	14,173	14,145	14,244	14,068
Effect of dilutive securities:
Other stock-based awards	2	11	29	65
Diluted weighted average shares outstanding	14,175	14,156	14,273	14,133
EPS Calculations:
Net income per share: Basic	$ 0.51	$ 0.90	$ 0.90	$ 0.84
Net income per share: Diluted	$ 0.51	$ 0.90	$ 0.90	$ 0.84