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COMMITMENTS AND CONTINGENCIES (Details) - OPERATING LEASES - USD ($) |  | 12 Months Ended
--- | --- | ---
Nov. 01, 2016 | May 31, 2022 | May 31, 2021
Building In Irvine California [Member] | First Amendment To Lease [Member] |  |  |
COMMITMENTS AND CONTINGENCIES (Details) - OPERATING LEASES [Line Items] |  |  |
Lease Expiration Date |  | Aug. 31, 2021 |
Operating Lease, Expense |  | $ 25,000 |
Security Deposit |  | 26,000 |
Property Available for Operating Lease [Member] | MEXICO |  |  |
COMMITMENTS AND CONTINGENCIES (Details) - OPERATING LEASES [Line Items] |  |  |
Operating Lease, Expense | $ 3,400 | 42,000 | $ 25,000
Lease Expiration Period | 10 years |  |
Property Available for Operating Lease [Member] | UNITED STATES |  |  |
COMMITMENTS AND CONTINGENCIES (Details) - OPERATING LEASES [Line Items] |  |  |
Operating Lease, Expense |  | $ 310,000 | $ 295,000

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- Definition Amount of operating lease expense. Excludes sublease income. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 45 -Paragraph 4 -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=123391704&loc=SL77918638-209977 + Details
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- Definition The amount of an asset, typically cash, provided to a counterparty to provide certain assurance of performance by the entity pursuant to the terms of a written or oral agreement, such as a lease. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(17)) -URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
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