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CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($)
$ in Thousands
Nov. 30, 2020
Aug. 31, 2020
Condensed Consolidated Balance Sheets [Abstract]    
Trade accounts receivable, less allowance for doubtful accounts $ 490 $ 362
Common stock, shares authorized 36,000,000 36,000,000
Common stock, par value $ 0.001 $ 0.001
Common stock, shares issued 19,836,102 19,812,685
Common stock, shares outstanding 13,688,203 13,664,786
Treasury stock, shares 6,147,899 6,147,899