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CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($)
$ in Thousands
Aug. 31, 2022
Aug. 31, 2021
Consolidated Balance Sheets [Abstract]    
Trade and other accounts receivable, less allowance for doubtful accounts $ 292 $ 463
Common stock, shares authorized 36,000,000 36,000,000
Common stock, par value $ 0.001 $ 0.001
Common stock, shares issued 19,888,807 19,856,865
Common stock, shares outstanding 13,602,346 13,708,966
Treasury stock, shares 6,286,461 6,147,899