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STOCK-HOLDER'S EQUITY (Details - Option activity) - Equity Option [Member] - $ / shares | 12 Months Ended
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Jun. 30, 2022 | Jun. 30, 2021
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] |  |
Number of stock options outstanding - at beginning | 2,578,200 | 2,065,200
Weighted average exercise price options outstanding- at beginning | $ 1.13 | $ 0.95
Weighted average contractual life |  | 6 years 7 months 2 days
Number of options granted | 614,500 | 630,000
Weighted average exercise price - grants | $ 1.74 | $ 1.65
Number of options exercised | (295,700) | (112,000)
Weighted average exercise price - exercised | $ 1.05 | $ 0.57
Number of options cancelled | (183,000) | (5,000)
Weighted average exercise price - cancelled | $ 1.60 | $ 1.30
Weighted average contractual life | 6 years 8 months 23 days |
Number of options outstanding - at ending | 2,714,000 | 2,578,200
Weighted average exercise price options outstanding - at end | $ 1.33 | $ 1.13
Weighted average contractual life | 7 years 29 days |

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- Definition The number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan. + 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)(03) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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