SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Goodwill and Other Intangibles) (Narrative) (Details) - USD ($) $ in Thousands	May 31, 2022	Aug. 31, 2021	May 31, 2021
Finite-Lived Intangible Assets [Line Items]
Goodwill and other intangibles, net	$ 44,500	$ 52,900
Goodwill	43,347	45,095	$ 45,142
Other intangibles, net	1,153	$ 7,762
Aeropost [Member]
Finite-Lived Intangible Assets [Line Items]
Goodwill	1,700
Aeropost [Member] | Trade Name [Member]
Finite-Lived Intangible Assets [Line Items]
Other intangibles, net	4,400
Aeropost [Member] | Developed Technology [Member]
Finite-Lived Intangible Assets [Line Items]
Other intangibles, net	$ 1,000