EMPLOYEE BENEFIT PLANS (Details Narrative) - USD ($)	12 Months Ended
	May 31, 2022	May 31, 2021	May 31, 2020
EMPLOYEE BENEFIT PLANS (Details Narrative)
Contributions to ESOP	$ 250,000	$ 60,000	$ 60,000
Shares contributed to the ESOP during fiscal year (in thousands)	26,666	36,000	34,000
Defined contribution plan, description	The stock bonus plan was converted to an employee stock ownership plan (“ESOP”) to enable the Plan to better comply with changes in the law regarding Company stock. Individuals’ account balances vest at a rate of 20% per year commencing upon completion of two years of service.