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Condensed Consolidated Balance Sheets (Parenthetical) - USD ($)
shares in Thousands, $ in Thousands
Feb. 28, 2022
Aug. 31, 2021
Condensed Consolidated Balance Sheets [Abstract]    
Allowance for doubtful accounts $ 4,504 $ 4,643
Common stock, par value $ 0.05 $ 0.05
Common stock, shares authorized 40,000 40,000
Common stock, shares issued 27,056 27,056
Treasury stock, shares 12,730 12,889