INCOME TAXES (Significant Components of Deferred Tax Assets) (Details) - USD ($) $ in Thousands	Aug. 31, 2016	Aug. 31, 2015
Deferred tax assets:
U.S. net operating loss carryforward	$ 3,226	$ 4,611
Foreign tax credits	185
Deferred compensation	1,706	1,563
U.S. timing differences and alternative minimum tax credits	2,846	2,438
Foreign net operating losses	13,414	9,493
Gross deferred tax assets	37,713	33,819
U.S. deferred tax liabilities (depreciation and other timing	(3,944)	(3,761)
Foreign deferred tax liabilities netted against deferred tax assets	(8,848)	(4,677)
U.S. valuation allowance	(652)	(652)
Foreign valuation allowance	(12,011)	(9,884)
Net deferred tax assets	12,258	14,845
Accrued Expenses And Other Timing Differences [Member]
Deferred tax assets:
Foreign timing differences	3,807	5,385
Depreciaton And Amortization, Foreign Timing Differences [Member]
Deferred tax assets:
Foreign timing differences	8,923	6,855
Deferred Income Foreign Timing Differences [Member]
Deferred tax assets:
Foreign timing differences	$ 3,606	$ 3,474