Profit Sharing Plan (Details) - USD ($)	12 Months Ended
	Aug. 31, 2021	Aug. 31, 2020
Defined Contribution Plan, Employer Matching Contribution, Percent of Employees' Gross Pay	50.00%
Defined Contribution Plan, Administrative Expense	$ 479,000	$ 446,000
Defined Contribution Plan, Description	five-year
Employee Contributions
Defined Contribution Plan, Employer Matching Contribution, Percent of Match	4.00%
Deferred Profit Sharing
Defined Contribution Plan, Employer Matching Contribution, Percent of Match	15.00%