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Note 23 - Stock Options - Summary of Options Activities 2017 Directors Plan (Details) - USD ($) | 12 Months Ended
--- | ---
Jun. 30, 2022 | Jun. 30, 2021 | Jun. 30, 2020
Director Plan 2017 [Member] |  |  |
Outstanding. options (in shares) | 320,000 | 240,000 |
Outstanding, weighted average exercise price (in dollars per share) | $ 4.27 | $ 3.93 |
Outstanding, weighted average remaining contractual term (Year) | 2 years 10 months 6 days | 3 years 2 months 19 days | 3 years 9 months
Aggregate intrinsic value outstanding | $ 228 | $ 340 | $ 48
Granted, options (in shares) | 100,000 | 80,000 |
Granted, weighted average exercise price (in dollars per share) | $ 7.76 | $ 5.27 |
Granted (Year) | 4 years 8 months 23 days |  |
Outstanding, options (in shares) | 420,000 | 320,000 | 240,000
Outstanding, weighted average exercise price (in dollars per share) | $ 5.10 | $ 4.27 | $ 3.93
Exercisable, options (in shares) | 420,000 | 320,000 |
Exercisable, , weighted average exercise price (in dollars per share) | $ 5.10 | $ 4.27 |
Exercisable, weighted average remaining contractual term (Year) | 2 years 10 months 6 days | 3 years 2 months 19 days |
Exercisable, aggregate intrinsic value | $ 228 | $ 340 |
Employee Stock Option Plan 2007 [Member] |  |  |
Outstanding. options (in shares) | 37,500 | 77,500 |
Outstanding, weighted average exercise price (in dollars per share) | $ 4.14 | $ 3.69 |
Outstanding, weighted average remaining contractual term (Year) |  | 9 months | 1 year 2 months 19 days
Aggregate intrinsic value outstanding | $ 0 | $ 34 | $ 0
Granted, weighted average exercise price (in dollars per share) |  | $ 0 |
Granted (Year) |  | 4 years 7 months 20 days |
Outstanding, options (in shares) | 0 | 37,500 | 77,500
Outstanding, weighted average exercise price (in dollars per share) | $ 0 | $ 4.14 | $ 3.69
Exercisable, options (in shares) | 0 | 37,500 |
Exercisable, , weighted average exercise price (in dollars per share) | $ 0 | $ 4.14 |
Exercisable, weighted average remaining contractual term (Year) |  | 9 months |
Exercisable, aggregate intrinsic value |  | $ 34 |
Granted (in dollars per share) |  | $ 0 |

X
- Definition Represents weighted average remaining contractual term for share-based compensation arrangement by share-based payment award. + References No definition available. + Details
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- Definition Represents weighted average remaining contract term for options granted. + References No definition available. + Details
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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://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iii) -URI https://asc.fasb.org/extlink&oid=128089324&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://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iii) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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- Definition The grant-date intrinsic 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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- 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 Amount by which the current fair value of the underlying stock exceeds the exercise price of options outstanding. + 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 https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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- Definition Number of options outstanding, including both vested and non-vested options. + 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)(ii) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(i) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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- Definition Weighted average price at which grantees can acquire the shares reserved for issuance under 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)(ii) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(i) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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- Definition Weighted average remaining contractual term of exercisable stock options, 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)(2) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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