EARNINGS PER SHARE (Schedule of the Computation of Net Income Per Share) (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Nov. 30, 2022	Nov. 30, 2021
EARNINGS PER SHARE [Abstract]
Net income attributable to PriceSmart, Inc.	$ 32,905	$ 30,511
Less: Allocation of income to unvested stockholders	(586)	(560)
Net income attributable to PriceSmart, Inc. per share available for distribution	$ 32,319	$ 29,951
Basic weighted average shares outstanding	30,713	30,551
Add dilutive effect of performance stock units (two-class method)	6	52
Diluted average shares outstanding	30,719	30,603
Basic net income per share	$ 1.05	$ 0.98
Diluted net income per share	$ 1.05	$ 0.98