UNCONSOLIDATED AFFILIATES (Summary of Financial Information of Unconsolidated Affiliates) (Details) - USD ($) $ in Thousands	12 Months Ended
	Aug. 31, 2018	Aug. 31, 2017	Aug. 31, 2016
Assets and Liabilities, Net
Current assets	$ 1,528	$ 1,221
Noncurrent assets	10,883	11,207
Current liabilities	239	226
Noncurrent liabilities	10	26
Net Income (Loss)
PriceSmart's share of net income (loss) of unconsolidated affiliates	$ (8)	$ (1)	$ 332