Leases (Details) - USD ($) $ in Thousands	Feb. 28, 2022	Aug. 31, 2021
Assets
Operating lease right-of-use asset	$ 9,554	$ 9,312
Liabilities
Current (accrued expenses)	$ 1,484	$ 1,515
Operating Lease, Liability, Current, Statement of Financial Position [Extensible List]	Accrued Liabilities, Current	Accrued Liabilities, Current
Operating lease long-term liabilities	$ 7,493	$ 7,202
Total lease liability	$ 8,977	$ 8,717