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v3.23.1

Note 2 - Investments - Components of Investments (Details) - USD ($) | Dec. 31, 2022 | Jun. 30, 2022
--- | --- | ---
Cost |  | $ 19,967,000 |  | $ 19,967,000
Unrealized gains losses |  | (6,703,000) |  | (5,667,000)
Investments in equity securities |  | 13,264,000 |  | 14,300,000
Amortized cost |  | 8,246,000 | [1] | 8,576,000
Unrealized gains |  | 2,393,000 |  | 4,588,000
Available-for-sale - Convertible debentures (1) |  | (2,512,000) |  | (2,539,000)
Investments in debt securities |  | 8,127,000 | [1] | 10,625,000
Amortized cost, held-to-maturity | [2] | 1,000,000 |  | 1,000,000
Unrecognized gains, held-to-maturity |  | 0 | [2] | 0
Unrecognized losses, held-to-maturity |  | (251,000) | [2] | (133,000)
Fair value, held-to-maturity |  | 749,000 | [2] | 867,000
Equity Securities International [Member] |  |  |  |
Cost |  | 6,680,000 |  | 6,680,000
Unrealized gains losses |  | (6,037,000) |  | (5,141,000)
Investments in equity securities |  | 643,000 |  | 1,539,000
Equity Securities Domestic [Member] |  |  |  |
Cost |  | 45,000 |  | 45,000
Unrealized gains losses |  | (45,000) |  | (45,000)
Investments in equity securities |  | 0 |  | 0
Mutual Funds Fixed Income [Member] |  |  |  |
Cost |  | 12,313,000 |  | 12,313,000
Unrealized gains losses |  | (322,000) |  | (175,000)
Investments in equity securities |  | 11,991,000 |  | 12,138,000
Mutual Funds Global Equity [Member] |  |  |  |
Cost |  | 929,000 |  | 929,000
Unrealized gains losses |  | (299,000) |  | (306,000)
Investments in equity securities |  | $ 630,000 |  | $ 623,000
[1] | Principal payments of $750,000 are due quarterly with a final maturity date in January 2026.
[2] | Held-to-maturity debt investments are carried at amortized cost, and the fair value is classified as Level 2 according to the fair value hierarchy.

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