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Note 17 - Share-based Compensation - Nonvested Share Activity (Details) - $ / shares | 12 Months Ended
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Jun. 30, 2023 | Jun. 30, 2022 | Jun. 30, 2021
Nonvested options (in shares) | 20,492 |  |
Nonvested options, weighted average exercise price (in dollars per share) | $ 18.22 |  |
Granted options (in shares) | 23,970 | 25,410 | 37,008
Granted options, weighted average exercise price (in dollars per share) | $ 25.03 | $ 23.61 | $ 12.97
Vested options (in shares) | (10,734) |  |
Vested options, weighted average exercise price (in dollars per share) | $ 17.39 |  |
Canceled (forfeited) options (in shares) | (3,995) |  |
Canceled (forfeited) options, weighted average exercise price (in dollars per share) | $ 25.03 |  |
Nonvested options (in shares) | 29,733 | 20,492 |
Nonvested options, weighted average exercise price (in dollars per share) | $ 23.09 | $ 18.22 |

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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 -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iv)(01) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 + Details
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- Definition Weighted average per share amount at which grantees can acquire shares of common stock by exercise of options. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iv)(01) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 + Details
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