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Condensed Consolidated Statements Of Changes In 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, 2021 27,056,000          
Beginning balance at Aug. 31, 2021 $ 1,353 $ 214,888 $ 63,591 $ 709    
Beginning balance, shares, Treasury at Aug. 31, 2021         (12,889,000)  
Beginning balance, Treasury at Aug. 31, 2021         $ (200,678)  
Issuance of common stock from treasury, shares         217,000  
Issuance of common stock from treasury (3,033) $ 3,378  
Purchase of common shares for treasury, shares         (85,000)  
Purchase of common shares for treasury $ (3,488)  
Stock-based compensation 1,649  
Cumulative translation adjustments (144)  
Net income 3,812  
Ending balance, shares at Nov. 30, 2021 27,056,000          
Ending balance at Nov. 30, 2021 $ 1,353 213,504 67,403 565    
Ending balance, shares, Treasury at Nov. 30, 2021         (12,757,000)  
Ending balance, Treasury at Nov. 30, 2021         $ (200,788)  
Beginning balance, shares at Aug. 31, 2021 27,056,000          
Beginning balance at Aug. 31, 2021 $ 1,353 214,888 63,591 709    
Beginning balance, shares, Treasury at Aug. 31, 2021         (12,889,000)  
Beginning balance, Treasury at Aug. 31, 2021         $ (200,678)  
Issuance of common stock from treasury, shares         15,000  
Issuance of common stock from treasury $ 84 $ 239  
Purchase of common shares for treasury, shares (1,000)  
Purchase of common shares for treasury         $ (47)  
Stock-based compensation $ 1,969  
Unvested share award, shares         13,000  
Unvested share award (209) $ 209  
Cumulative translation adjustments (32) $ (176)
Net income 1,878 5,690
Ending balance, shares at Feb. 28, 2022 27,056,000          
Ending balance at Feb. 28, 2022 $ 1,353 215,348 69,281 533    
Ending balance, shares, Treasury at Feb. 28, 2022         (12,730,000)  
Ending balance, Treasury at Feb. 28, 2022         $ (200,387)  
Beginning balance, shares at Nov. 30, 2021 27,056,000          
Beginning balance at Nov. 30, 2021 $ 1,353 213,504 67,403 565    
Beginning balance, shares, Treasury at Nov. 30, 2021         (12,757,000)  
Beginning balance, Treasury at Nov. 30, 2021         $ (200,788)  
Cumulative translation adjustments           (32)
Net income           1,878
Ending balance, shares at Feb. 28, 2022 27,056,000          
Ending balance at Feb. 28, 2022 $ 1,353 215,348 69,281 533    
Ending balance, shares, Treasury at Feb. 28, 2022         (12,730,000)  
Ending balance, Treasury at Feb. 28, 2022         $ (200,387)  
Beginning balance, shares at Aug. 31, 2022 27,056,000          
Beginning balance at Aug. 31, 2022 $ 1,353 220,246 82,021 (542)   $ 82,814
Beginning balance, shares, Treasury at Aug. 31, 2022         (13,203,000) (13,203,000)
Beginning balance, Treasury at Aug. 31, 2022         $ (220,264)  
Issuance of common stock from treasury, shares         56,000  
Issuance of common stock from treasury (568) $ 935  
Purchase of common shares for treasury, shares         (18,000)  
Purchase of common shares for treasury $ (835)  
Stock-based compensation 2,735  
Cumulative translation adjustments (130)  
Net income 4,667  
Ending balance, shares at Nov. 30, 2022 27,056,000          
Ending balance at Nov. 30, 2022 $ 1,353 222,413 86,688 (672)    
Ending balance, shares, Treasury at Nov. 30, 2022         (13,165,000)  
Ending balance, Treasury at Nov. 30, 2022         $ (220,164)  
Beginning balance, shares at Aug. 31, 2022 27,056,000          
Beginning balance at Aug. 31, 2022 $ 1,353 220,246 82,021 (542)   $ 82,814
Beginning balance, shares, Treasury at Aug. 31, 2022         (13,203,000) (13,203,000)
Beginning balance, Treasury at Aug. 31, 2022         $ (220,264)  
Issuance of common stock from treasury, shares           83,392
Purchase of common shares for treasury, shares           (97,000)
Purchase of common shares for treasury           $ (4,665)
Cumulative translation adjustments           16
Net income           6,406
Ending balance, shares at Feb. 28, 2023 27,056,000          
Ending balance at Feb. 28, 2023 $ 1,353 225,643 88,427 (526)   $ 91,361
Ending balance, shares, Treasury at Feb. 28, 2023         (13,216,000) (13,216,000)
Ending balance, Treasury at Feb. 28, 2023         $ (223,536)  
Beginning balance, shares at Nov. 30, 2022 27,056,000          
Beginning balance at Nov. 30, 2022 $ 1,353 222,413 86,688 (672)    
Beginning balance, shares, Treasury at Nov. 30, 2022         (13,165,000)  
Beginning balance, Treasury at Nov. 30, 2022         $ (220,164)  
Issuance of common stock from treasury, shares         12,000  
Issuance of common stock from treasury 181 $ 192  
Purchase of common shares for treasury, shares         (79,000)  
Purchase of common shares for treasury $ (3,830)  
Stock-based compensation 3,315  
Unvested share award, shares         16,000  
Unvested share award (266) $ 266  
Cumulative translation adjustments 146 $ 146
Net income 1,739 1,739
Ending balance, shares at Feb. 28, 2023 27,056,000          
Ending balance at Feb. 28, 2023 $ 1,353 $ 225,643 $ 88,427 $ (526)   $ 91,361
Ending balance, shares, Treasury at Feb. 28, 2023         (13,216,000) (13,216,000)
Ending balance, Treasury at Feb. 28, 2023         $ (223,536)