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INCOME TAXES (Significant Components of Deferred Tax Assets) (Details) - USD ($) $ in Thousands	Aug. 31, 2019	Aug. 31, 2018
Deferred tax assets:
U.S. net operating loss carryforward	$ 3,763	$ 4,470
Foreign tax credits	7,170	126
Deferred compensation	927	907
U.S. timing differences	2,598	1,609
Foreign net operating losses	4,481	5,276
Gross deferred tax assets	37,843	31,461
U.S. deferred tax liabilities (depreciation and other timing differences)	(5,286)	(5,844)
Foreign deferred tax liabilities netted against deferred tax assets	(5,360)	(5,722)
U.S. valuation allowance	(7,177)	(1,005)
Foreign valuation allowance	(4,546)	(8,724)
Net deferred tax assets	15,474	10,166
Accrued Expenses And Other Timing Differences, Foreign Timing Differences [Member]
Deferred tax assets:
Foreign timing differences	5,581	5,122
Depreciaton And Amortization, Foreign Timing Differences [Member]
Deferred tax assets:
Foreign timing differences	8,819	10,406
Deferred Income, Foreign Timing Differences [Member]
Deferred tax assets:
Foreign timing differences	$ 4,504	$ 3,545

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