EARNINGS PER SHARE (EPS) (Details Narrative) - shares	12 Months Ended
	May 31, 2022	May 31, 2021	May 31, 2020
Employee Stock Purchase Plan
Options not included in the computation of diluted net loss per share (in thousands)		239,000	192,000
Stock Option
Options not included in the computation of diluted net loss per share (in thousands)	64,000	2,766,000	3,153,000
Restricted Stock Units
Options not included in the computation of diluted net loss per share (in thousands)		132,000	10,000