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Note 3 - Investments (Tables) | 12 Months Ended
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Jun. 30, 2024
Notes Tables |
Debt Securities, Available-for-Sale [Table Text Block] |
|  | June 30, 2024 |
Available-for-Sale |  | Adjusted |  |  | Unrealized |  |  | Unrealized |  |  | Fair |
(In thousands) |  | Cost |  |  | Gain |  |  | Loss |  |  | Value |
Mutual Funds - Corporate & Government Debt |  | $ | 15,276 |  |  | $ | — |  |  | $ | (850 | ) |  | $ | 14,426 |
ETFs - Corporate & Government Debt |  |  | 7,375 |  |  |  | — |  |  |  | (327 | ) |  |  | 7,048 |
Total |  | $ | 22,651 |  |  | $ | — |  |  | $ | (1,177 | ) |  | $ | 21,474 |
|  | June 30, 2023 |
Available-for-Sale |  | Adjusted |  |  | Unrealized |  |  | Unrealized |  |  | Fair |
(In thousands) |  | Cost |  |  | Gain |  |  | Loss |  |  | Value |
Mutual Funds - Corporate & Government Debt |  | $ | 19,990 |  |  | $ | — |  |  | $ | (1,025 | ) |  | $ | 18,965 |
ETFs - Corporate & Government Debt |  |  | 7,376 |  |  |  | — |  |  |  | (418 | ) |  |  | 6,958 |
Time Deposits |  |  | 2,006 |  |  |  | — |  |  |  | (10 | ) |  |  | 1,996 |
Total |  | $ | 29,372 |  |  | $ | — |  |  | $ | (1,453 | ) |  | $ | 27,919 |
|  | Carrying Value |
|  | Short-Term Investments |  |  | Long-Term Investments |
(In thousands) |  | June 30, 2024 |  |  | June 30, 2023 |  |  | June 30, 2024 |  |  | June 30, 2023 |
Money Market Funds |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Mutual Funds - Corporate & Government Debt |  | $ | 14,426 |  |  | $ | 18,965 |  |  | $ | — |  |  | $ | — |
ETFs - Corporate & Government Debt |  |  | 7,048 |  |  |  | 6,958 |  |  |  | — |  |  |  | — |
Time deposits |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Maturities from 1-90 days |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
Maturities from 91-360 days |  |  | — |  |  |  | 1,996 |  |  |  | — |  |  |  | — |
Total |  | $ | 21,474 |  |  | $ | 27,919 |  |  | $ | — |  |  | $ | — |

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