SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Summary of Restricted Cash) (Details) - USD ($) $ in Thousands		May 31, 2020	Aug. 31, 2019
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES [Abstract]
Short-term restricted cash		$ 240	$ 54
Long-term restricted cash	[1]	3,996	3,529
Total restricted cash		$ 4,236	$ 3,583

[1] Long-term restricted cash consists mainly of cash deposits held within banking institutions in compliance with federal regulatory requirements in Costa Rica and Panama.