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 Loss [Member]	Treasury Stock [Member]	Total
Beginning balance, shares at Aug. 31, 2023	27,056,000
Beginning balance at Aug. 31, 2023	$ 1,353	$ 232,373	$ 99,802	$ (987)	$ (253,887)
Beginning balance, shares, Treasury at Aug. 31, 2023					(13,974,000)
Issuance of common stock from treasury, shares					601,000
Issuance of common stock from treasury		(10,569)			$ 10,925
Purchases of common shares for treasury, shares					(409,000)
Purchases of common shares for treasury					$ (16,308)
Stock-based compensation		2,897
Cumulative translation adjustments				51		$ 51
Net income			4,851			4,851
Ending balance, shares at Nov. 30, 2023	27,056,000
Ending balance at Nov. 30, 2023	$ 1,353	224,701	104,653	(936)	$ (259,270)
Ending balance, shares, Treasury at Nov. 30, 2023					(13,782,000)
Beginning balance, shares at Aug. 31, 2024	27,056,000
Beginning balance at Aug. 31, 2024	$ 1,353	231,813	123,204	(768)	$ (272,467)	$ 83,135
Beginning balance, shares, Treasury at Aug. 31, 2024					(14,084,000)	(14,084,000)
Issuance of common stock from treasury, shares					363,000	362,867
Issuance of common stock from treasury		(6,707)			$ 7,027
Purchases of common shares for treasury, shares					(146,000)
Purchases of common shares for treasury					$ (5,954)
Stock-based compensation		2,167
Cumulative translation adjustments				(202)		$ (202)
Net income			1,181			1,181
Ending balance, shares at Nov. 30, 2024	27,056,000
Ending balance at Nov. 30, 2024	$ 1,353	$ 227,273	$ 124,385	$ (970)	$ (271,394)	$ 80,647
Ending balance, shares, Treasury at Nov. 30, 2024					(13,867,000)	(13,867,000)