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Income (Loss) Per Share (Computation Of Income (Loss) Per Share) (Details) - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
12 Months Ended
Aug. 31, 2021
Aug. 31, 2020
Aug. 31, 2019
Numerator for basic and diluted earnings per share:      
Net income (loss) $ 13,623 $ (9,435) $ (1,023)
Denominator for basic and diluted earnings per share:      
Basic weighted average shares outstanding 14,090 13,892 13,948
Effect of dilutive securities:      
Stock options and other stock-based awards 53    
Diluted weighted average shares outstanding 14,143 13,892 13,948
EPS Calculations:      
Net income (loss) per share: Basic $ 0.97 $ (0.68) $ (0.07)
Net income (loss) per share: Diluted $ 0.96 $ (0.68) $ (0.07)