Related Party Transactions (Narrative) (Details) - USD ($) $ in Thousands	12 Months Ended
Aug. 31, 2023	Aug. 31, 2022	Aug. 31, 2021
Related Party Transaction [Line Items]
Sales to External Customers	$ 280,521	$ 262,841	$ 224,168
Stephen M.R. Covey [Member] \| Intellectual Property [Member]
Related Party Transaction [Line Items]
Royalty payments	1,700	1,800	1,500
Son Of The Former Vice-Chairman Of The Board Of Directors [Member] \| Speaking Fees [Member]
Related Party Transaction [Line Items]
Royalty payments	1,400	800	600
Accrued royalties payable		300
Son Of The Former Vice-Chairman Of The Board Of Directors [Member] \| Sales Of Books [Member]
Related Party Transaction [Line Items]
Royalty payments	100	100	100
Accrued royalties payable	100	100
Brother Of Member Of Executive Management Team [Member]
Related Party Transaction [Line Items]
Payable to FCOP	$ 200	$ 300	$ 800

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