STOCKBASED COMPENSATION (Details 7) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Feb. 28, 2023	Feb. 28, 2022	Feb. 28, 2023	Feb. 28, 2022
STOCKBASED COMPENSATION (Details)
Net RSUs and PRSUs vested	19,000	21,000	221,000	83,000
Shares withheld to settle payroll taxes	16,000	0	165,000	0
RSUs and PRSUs unvested	406,000	485,000	406,000	485,000
Intrinsic value of unvested RSUs and PRSUs (in thousands)	$ 13,540	$ 6,596	$ 13,540	$ 6,596