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SHAREHOLDERS' EQUITY (Details) - Non-vested Stock Options Activity | 12 Months Ended
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May 31, 2022 $ / shares shares
Non Vested Stock Options Activity Abstract |
Non-vested shares, number of shares | shares | 793,241
Non-vested shares, weighted average grant date fair value | $ / shares | $ 5.54
Granted, number of shares | shares | 344,000
Granted, weighted average grant date fair value | $ / shares | $ 4.43
Vested, number of shares | shares | (347,279)
Vested, weighted average grant date fair value | $ / shares | $ 5.4
Forfeited, number of shares | shares | (43,500)
Forfeited, weighted average grant date fair value | $ / shares | $ 5.22
Non-vested shares, number of shares | shares | 746,462
Non-vested shares, weighted average grant date fair value | $ / shares | $ 5.11

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- Definition Gross number of share options (or share units) granted during the period. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iv)(01) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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- Definition The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (d)(1) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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