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Consolidated Statements Of Shareholders' Equity - USD ($)
$ in Thousands
Common Stock [Member]
Additional Paid-In Capital [Member]
Retained Earnings [Member]
Accumulated Other Comprehensive Income (Loss) [Member]
Treasury Stock [Member]
Total
Beginning balance, shares at Aug. 31, 2020 27,056,000       13,175,000  
Beginning balance at Aug. 31, 2020 $ 1,353 $ 211,920 $ 49,968 $ 641 $ (204,429)  
Issuance of common stock from treasury, shares         405,000  
Issuance of common stock from treasury   (5,213)     $ 6,286  
Purchase of common shares for treasury, shares         (147,000)  
Purchase of common shares for treasury         $ (2,971)  
Unvested share award, shares         28,000  
Unvested share award   (436)     $ 436  
Stock-based compensation   8,617        
Cumulative translation adjustments       68   $ 68
Net income     13,623     13,623
Ending balance, shares at Aug. 31, 2021 27,056,000       12,889,000  
Ending balance at Aug. 31, 2021 $ 1,353 214,888 63,591 709 $ (200,678)  
Issuance of common stock from treasury, shares         258,000  
Issuance of common stock from treasury   (2,719)     $ 4,055  
Purchase of common shares for treasury, shares         (585,000)  
Purchase of common shares for treasury         $ (23,850)  
Unvested share award, shares         13,000  
Unvested share award   (209)     $ 209  
Stock-based compensation   8,286        
Cumulative translation adjustments       (1,251)   (1,251)
Net income     18,430     18,430
Ending balance, shares at Aug. 31, 2022 27,056,000       (13,203,000)  
Ending balance at Aug. 31, 2022 $ 1,353 220,246 82,021 (542) $ (220,264) $ 82,814
Ending balance, shares, Treasury at Aug. 31, 2022           (13,203,000)
Issuance of common stock from treasury, shares         98,000 114,214
Issuance of common stock from treasury   (127)     $ 1,666  
Purchase of common shares for treasury, shares         (885,000)  
Purchase of common shares for treasury         $ (35,555)  
Unvested share award, shares         16,000  
Unvested share award   (266)     $ 266  
Stock-based compensation   12,520        
Cumulative translation adjustments       (445)   $ (445)
Net income     17,781     17,781
Ending balance, shares at Aug. 31, 2023 27,056,000       (13,974,000)  
Ending balance at Aug. 31, 2023 $ 1,353 $ 232,373 $ 99,802 $ (987) $ (253,887) $ 78,654
Ending balance, shares, Treasury at Aug. 31, 2023           (13,974,000)