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.