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INCOME TAXES (Details Narrative) - USD ($) | 12 Months Ended
--- | ---
May 31, 2023 | May 31, 2022
Operating Loss Carryforwards [Line Items] |  |
Federal income tax rate | 21.00% | 21.00%
Deferred tax assets, valuation allowance | $ 8,940,000 | $ 6,967,000
Increase in valuation allowance | 1,973,000 | $ 1,063,000
Domestic Tax Authority [Member] |  |
Operating Loss Carryforwards [Line Items] |  |
Operating loss carryforwards | 21,958,000 |
Domestic Tax Authority [Member] | Research Tax Credit Carryforward [Member] |  |
Operating Loss Carryforwards [Line Items] |  |
Tax credit carryforward | 817,000 |
State and Local Jurisdiction [Member] |  |
Operating Loss Carryforwards [Line Items] |  |
Operating loss carryforwards | 17,269,000 |
State and Local Jurisdiction [Member] | Research Tax Credit Carryforward [Member] |  |
Operating Loss Carryforwards [Line Items] |  |
Tax credit carryforward | $ 533,000 |

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- Definition Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482685/740-10-50-2 + Details
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