COMMITMENTS AND CONTINGENCIES (Narrative) (Details) - USD ($)	1 Months Ended	12 Months Ended
	Jan. 31, 2017	Aug. 31, 2017	Aug. 31, 2016
Commitments And Contingencies [Line Items]
Accrual for taxes other than income taxes, Current		$ 3,400,000	$ 4,000,000
Contractual obligation		7,900,000
Land purchase option agreement		600,000
Land under purchase options, Not recorded		20,800,000
Purchase commitment, Remaining minimum amount committed		456,000
Income taxes receivable		$ 16,895,000	$ 16,778,000
Miami-Dade County, Florida [Member]
Commitments And Contingencies [Line Items]
Letter of credit payable to the landlord	$ 500,000
Debt term		4 years
Unknown Country [Member]
Commitments And Contingencies [Line Items]
Deferred tax assets, net		$ 2,000,000
Income taxes receivable		$ 4,300,000