DEBT (Narrative) (Details) $ in Thousands		1 Months Ended	3 Months Ended
	Mar. 31, 2017 USD ($) item	Jan. 31, 2017 USD ($)	Nov. 30, 2017 USD ($)		Aug. 31, 2017 USD ($)
Debt Instrument [Line Items]
Total			$ 98,597	[1]	$ 106,297	[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			$ 82,800		85,600
Trinidad Subsidiary [Member]
Debt Instrument [Line Items]
Number of payments | item	8
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
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%
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
Derivative, variable interest rate			1.70%

[1] The carrying amount of non-cash assets assigned as collateral for these loans was $121.0 million. No cash assets were assigned as collateral for these loans.

[2] The carrying amount of non-cash assets assigned as collateral for these loans was $128.4 million. No cash assets were assigned as collateral for these loans.