SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Summary of Restricted Cash) (Details) - USD ($) $ in Thousands		May 31, 2021	Aug. 31, 2020
Cash and Cash Equivalents [Line Items]
Short-term restricted cash		$ 781	$ 185
Long-term restricted cash		6,972	4,105
Total restricted cash	[1]	7,753	$ 4,290
Loans payable		3,000
Certificates of Deposit [Member]
Cash and Cash Equivalents [Line Items]
Total restricted cash		$ 3,000

[1] Restricted cash consists of cash deposits held within banking institutions to comply with federal regulatory requirements in Costa Rica and Panama. In addition, the Company is required to maintain a certificate of deposit of Trinidad dollars, as measured in U.S. dollars, of approximately $3.0 million with one of its lenders as a compensating balance for a $3.0 million U.S. dollar denominated loan payable over several years. The certificate of deposit will be reduced annually commensurate with the loan balance.