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Note 6 - Fair Value Measurement (Tables) | 12 Months Ended
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Jun. 30, 2024
Notes Tables |
Fair Value Measurements, Recurring and Nonrecurring [Table Text Block] |
|  | June 30, 2024 |
|  | Carrying |  |  | Fair Value Measured Using |  |  | Fair |
(In thousands) |  | Amount |  |  | Level 1 |  |  | Level 2 |  |  | Level 3 |  |  | Value |
Available-for-Sale Securities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Short-Term Investments |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Mutual Funds - Corporate & Government Debt |  | $ | 14,426 |  |  | $ | 14,426 |  |  | $ | — |  |  | $ | — |  |  | $ | 14,426 |
ETFs - Corporate & Government Debt |  |  | 7,048 |  |  |  | 7,048 |  |  |  | — |  |  |  | — |  |  |  | 7,048 |
Time Deposits: 91-360 days |  |  | — |  |  |  | — |  |  |  | — |  |  |  |  |  |  |  | — |
Total Available-for-Sale Investments |  | $ | 21,474 |  |  | $ | 21,474 |  |  | $ | — |  |  | $ | — |  |  | $ | 21,474 |
|  | June 30, 2023 |
|  | Carrying |  |  | Fair Value Measured Using |  |  | Fair |
(In thousands) |  | Amount |  |  | Level 1 |  |  | Level 2 |  |  | Level 3 |  |  | Value |
Available-for-Sale Securities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Short-Term Investments |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Mutual Funds - Corporate & Government Debt |  | $ | 18,965 |  |  | $ | 18,965 |  |  | $ | — |  |  | $ | — |  |  | $ | 18,965 |
ETFs - Corporate & Government Debt |  |  | 6,958 |  |  |  | 6,958 |  |  |  | — |  |  |  | — |  |  |  | 6,958 |
Time Deposits |  |  | 1,996 |  |  |  | — |  |  |  | 1,996 |  |  |  | — |  |  |  | 1,996 |
Total Available-for-Sale Investments |  | $ | 27,919 |  |  | $ | 25,923 |  |  | $ | 1,996 |  |  | $ | — |  |  | $ | 27,919 |

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- Definition Tabular disclosure of financial instrument measured at fair value on recurring or nonrecurring basis. Includes, but is not limited to, instrument classified in shareholders' equity. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 Reference 3: http://www.xbrl.org/2003/role/exampleRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 55 -Paragraph 100 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482078/820-10-55-100 Reference 4: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-3 + Details
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