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		9 Months Ended
	May 31, 2022	May 31, 2021	May 31, 2022	May 31, 2021
EARNINGS PER SHARE [Abstract]
Net income attributable to PriceSmart, Inc.	$ 19,258	$ 22,529	$ 81,230	$ 78,502
Less: Allocation of income to unvested stockholders	(312)	(372)	(869)	(952)
Net income attributable to PriceSmart, Inc. available for distribution	$ 18,946	$ 22,157	$ 80,361	$ 77,550
Basic weighted average shares outstanding	30,615	30,414	30,582	30,396
Add dilutive effect of performance stock units (two-class method)	14	32	6	27
Diluted average shares outstanding	30,629	30,446	30,588	30,423
Basic net income per share	$ 0.62	$ 0.73	$ 2.63	$ 2.55
Diluted net income per share	$ 0.62	$ 0.73	$ 2.63	$ 2.55