STOCK OPTIONS AND STOCK-BASED COMPENSATION (Details Narrative)	3 Months Ended	9 Months Ended
Feb. 28, 2022 USD ($) $ / shares shares	Feb. 28, 2022 USD ($) $ / shares shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock options outstanding	22,500	22,500
Weighted-average exercise price \| $ / shares	$ 1.70	$ 1.70
RSUs granted		12,332
Restricted stock, compensation expense \| $	$ 25,647	$ 95,016
Compensation expense with a time vesting condition \| $	$ 30,424	$ 30,424
Restricted Stock Units - Service-Based
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
RSUs granted		12,332

Amount of cost to be recognized for nonvested award under share-based payment arrangement. Excludes share and unit options.

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-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (i)
-URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901

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Amount of noncash expense for award of restricted stock or unit under share-based payment arrangement.

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-Publisher FASB
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The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Number of options outstanding, including both vested and non-vested options.

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Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.

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