SUBSEQUENT EVENTS (Narrative) (Details) Q in Millions		Dec. 06, 2019 USD ($)	Dec. 06, 2019 GTQ (Q)	Dec. 03, 2019 USD ($)	Nov. 30, 2019 USD ($)	Aug. 31, 2019 USD ($)
Subsequent Event [Line Items]
Total long-term loans	[1]				$ 111,810,000	$ 89,586,000
Subsequent Event [Member] | Guatemala Subsidiary [Member]
Subsequent Event [Line Items]
Total long-term loans		$ 20,000,000.0	Q 160.0
Debt term		10 years
Interest rate		7.00%	7.00%
Subsequent Event [Member] | First Period Of Loan [Member] | Guatemala Subsidiary [Member]
Subsequent Event [Line Items]
Debt term		5 years
Cash Flow Hedging [Member] | Colombia $15M Cross Currency Interest Rate Swap [Member]
Subsequent Event [Line Items]
Derivative, Notional amount					$ 15,000,000
Debt instrument, Basis spread on variable rate					2.80%
Derivative, Fixed interest rate					8.25%
Cash Flow Hedging [Member] | Subsequent Event [Member] | Colombia 5 Year Cross Currency Interest Rate Swap [Member]
Subsequent Event [Line Items]
Derivative, Notional amount				$ 7,900,000
Debt instrument, Basis spread on variable rate				2.45%
Derivative, Fixed interest rate				7.90%

[1] The carrying amount of non-cash assets assigned as collateral for these loans was $111.3 million. No cash assets were assigned as collateral for these loans.