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SCHEDULE OF STOCK BASED COMPENSATION EXPENSE (Details) - USD ($) | 12 Months Ended
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May 31, 2024 | May 31, 2023
Total stock option expense | $ 837,000 | $ 1,185,000
Cost of Sales [Member] |  |
Total stock option expense | 70,000 | 143,000
Selling, General and Administrative Expenses [Member] |  |
Total stock option expense | 742,000 | 971,000
Research and Development Expense [Member] |  |
Total stock option expense | $ 25,000 | $ 71,000

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