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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.

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