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STOCKHOLDERS' EQUITY (Details) - Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding and Exercisable - Common Class A [Member] - $ / shares | 12 Months Ended |
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Jun. 30, 2021 | Jun. 30, 2020
STOCKHOLDERS' EQUITY (Details) - Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding and Exercisable [Line Items] |  |
Options Outstanding, Shares | 233,000 |
Options Outstanding, Remaining Life in Years | 9 years 11 months 12 days |
Options Outstanding, Weighted Average Exercise Price | $ 6.02 |
Options Exercisable, Shares | 2,000 |
Options Exercisable, Weighted Average Exercise Price | $ 2.74 |
1989 Plan [Member] |  |
STOCKHOLDERS' EQUITY (Details) - Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding and Exercisable [Line Items] |  |
Options Outstanding, Shares | 231,000 | 0
1989 Plan [Member] | June 21, 2021 [Member] |  |
STOCKHOLDERS' EQUITY (Details) - Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding and Exercisable [Line Items] |  |
Options Outstanding, Date of Option Grant | Jun. 21, 2021 |
Options Outstanding, Shares | 231,000 |
Options Outstanding, Remaining Life in Years | 9 years 11 months 23 days |
Options Outstanding, Weighted Average Exercise Price | $ 6.05 |
Options Exercisable, Shares | 0 |
Options Exercisable, Weighted Average Exercise Price | $ 0 |
1997 Plan [Member] |  |
STOCKHOLDERS' EQUITY (Details) - Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding and Exercisable [Line Items] |  |
Options Outstanding, Shares | 2,000 | 2,000
1997 Plan [Member] | March 21, 2018 [Member] |  |
STOCKHOLDERS' EQUITY (Details) - Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding and Exercisable [Line Items] |  |
Options Outstanding, Date of Option Grant | Mar. 21, 2018 |
Options Outstanding, Shares | 2,000 |
Options Outstanding, Remaining Life in Years | 6 years 8 months 19 days |
Options Outstanding, Weighted Average Exercise Price | $ 2.74 |
Options Exercisable, Shares | 2,000 |
Options Exercisable, Weighted Average Exercise Price | $ 2.74 |

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- Definition The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iii) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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- Definition The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iii) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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- Definition Number of options outstanding, including both vested and non-vested options. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(i)-(ii) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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- Definition Weighted average remaining contractual term for option awards outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (e)(1) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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