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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Summary of Restricted Cash) (Details) - USD ($) $ in Thousands		Feb. 28, 2021	Aug. 31, 2020
Cash and Cash Equivalents [Line Items]
Short-term restricted cash		$ 736	$ 185
Long-term restricted cash	[1]	6,864	4,105
Total restricted cash		7,600	$ 4,290
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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Amount of cash and cash equivalents restricted as to withdrawal or usage. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.

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