SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Summary of Restricted Cash) (Details) - USD ($) $ in Thousands		Aug. 31, 2021	Aug. 31, 2020
Cash and Cash Equivalents [Line Items]
Short-term restricted cash		$ 3,647	$ 185
Long-term restricted cash		9,772	4,105
Total restricted cash	[1]	13,419	$ 4,290
Certificates of Deposit [Member]
Cash and Cash Equivalents [Line Items]
Total restricted cash		$ 8,600

[1] Restricted cash consists mainly of cash deposits held within banking institutions in compliance with federal regulatory requirements in Costa Rica and Panama. In addition, the Company is required to maintain a certificate of deposit and/or security deposits of Trinidad dollars, as measured in U.S. dollars, of approximately $8.6 million with a few of its lenders as compensating balances for several U.S. dollar denominated loans payable over several years. The certificates of deposit will be reduced annually commensurate with the loan balances.