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DEBT (Narrative) (Details) $ in Thousands |  | 1 Months Ended | 12 Months Ended |
--- | --- | --- | --- | ---
Mar. 31, 2017 USD ($) item | Jan. 31, 2017 USD ($) | Aug. 31, 2017 USD ($) | Aug. 31, 2016 USD ($)
Debt Instrument [Line Items] |  |  |  |  |  |
Total |  |  | $ 106,297 | [1] | $ 88,107 | [2]
Debt With Covenants [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Line of credit, Current |  |  | 40,000 |  | 40,000 |
Group of Subsidiaries [Member] | Debt With Covenants [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Total |  |  | $ 85,600 |  | $ 76,000 |
Miami-Dade County, Florida [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Purchase price |  | $ 46,000 |  |  |  |
Debt term |  |  | 4 years |  |  |
Union Bank [Member] | Miami-Dade County, Florida [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Debt term |  |  | 10 years |  |  |
Credit facility funded |  | $ 35,700 |  |  |  |
Credit facility, expiration date |  |  | Dec. 31, 2027 |  |  |
Citibank [Member] | Trinidad Subsidiary [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
LIBOR measurement period | 90 days |  |  |  |  |
Credit facility, variable interest rate | 3.00% |  |  |  |  |
Maximum borrowing capacity | $ 12,000 |  |  |  |  |
Number of payments | item | 8 |  |  |  |  |
Debt instrument, Basis spread on variable rate | 3.00% |  |  |  |  |
Scotiabank [Member] | Panama Subsidiary [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Line of credit, Current |  |  | $ 13,300 |  |  |
London Interbank Offered Rate (LIBOR) [Member] | Union Bank [Member] | Miami-Dade County, Florida [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
LIBOR measurement period |  |  | 30 days |  |  |
Credit facility, variable interest rate |  |  | 1.70% |  |  |
Debt instrument, Basis spread on variable rate |  |  | 1.70% |  |  |
Interest Rate Contract [Member] | Union Bank [Member] | Miami-Dade County, Florida [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Notional amount |  |  | $ 35,700 |  |  |
Derivative, fixed interest rate |  |  | 3.65% |  |  |
Derivative, effective date |  |  | Mar. 01, 2017 |  |  |
Derivative, maturity date |  |  | Mar. 01, 2027 |  |  |
Interest Rate Contract [Member] | London Interbank Offered Rate (LIBOR) [Member] | Union Bank [Member] | Miami-Dade County, Florida [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
LIBOR measurement period |  |  | 30 days |  |  |
Credit facility, variable interest rate |  |  | 1.70% |  |  |
Debt instrument, Basis spread on variable rate |  |  | 1.70% |  |  |
[1] | The carrying amount on non-cash assets assigned as collateral for these loans was $128.4 million. No cash assets were assigned as collateral for these loans as of August 31, 2017.
[2] | The carrying amount on non-cash assets assigned as collateral for these loans was $102.4 million. No cash assets were assigned as collateral for these loans.

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- Definition The carrying value as of the balance sheet date of the current portion of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(13)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(19)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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