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v3.23.2

Note 2 - Investments (Details Textual) | 3 Months Ended | 6 Months Ended | 9 Months Ended |  |  |  |
--- | --- | --- | --- | --- | --- | --- | ---
Mar. 31, 2023 USD ($) $ / shares shares | Mar. 31, 2022 USD ($) | Jun. 30, 2022 USD ($) | Mar. 31, 2023 USD ($) $ / shares shares | Mar. 31, 2022 USD ($) | Mar. 31, 2023 $ / shares | Dec. 31, 2022 $ / shares | Sep. 30, 2021 | Jan. 31, 2021 USD ($) $ / shares
Statement [Line Items] |  |  |  |  |  |  |  |  |  |  |
Investment Owned, Fair Value | $ 20,800,000 |  |  |  | $ 20,800,000 |  |  |  |  |  |
Investment Owned, Cost | $ 27,600,000 |  |  |  | $ 27,600,000 |  |  |  |  |  |
Value of Fair Value Investments to Company Assets, Percent | 37.40% |  |  |  | 37.40% |  |  |  |  |  |
Equity Securities without Readily Determinable Fair Value, Amount | $ 2,827,000 |  | $ 4,208,000 | $ 3,992,000 | $ 2,827,000 |  | $ 4,208,000 |  |  |  |
Debt Securities, Held-to-Maturity, Amortized Cost, before Allowance for Credit Loss, Total | 1,000,000.0 |  |  | 1,000,000.0 | 1,000,000.0 |  |  |  |  |  |
Equity Securities, FV-NI, Total | 13,184,000 |  |  | 14,300,000 | 13,184,000 |  |  |  |  |  |
Debt Securities, Available-for-Sale, Total | 7,649,000 | [1] |  | 10,625,000 | 7,649,000 | [1] |  |  |  |  |
OCI, Debt Securities, Available-for-Sale, Unrealized Holding Gain (Loss), before Adjustment, after Tax | 80,000 |  | (141,000) |  | (939,000) |  | (428,000) |  |  |  |
Investment Income, Net | 1,155,000 |  | (3,495,000) |  | (189,000) |  | (1,950,000) |  |  |  |
Debt Securities, Held-to-Maturity, Accumulated Unrecognized Loss | 245,000 | [2] |  | 133,000 | 245,000 | [2] |  |  |  |  |
Debt Securities, Available-for-Sale, Periodic Principal Payments |  |  |  |  | 750,000 |  |  |  |  |  |
Equity Securities without Readily Determinable Fair Value, Upward Price Adjustment, Cumulative Amount | 2,500,000 |  |  |  | 2,500,000 |  |  |  |  |  |
Equity Securities without Readily Determinable Fair Value, Downward Price Adjustment, Cumulative Amount | 3,300,000 |  |  |  | 3,300,000 |  |  |  |  |  |
Income (Loss) from Equity Method Investments | 0 |  | (173,000) |  | 0 |  | (206,000) |  |  |  |
Realized Gain (Loss) on Principal Payment Proceeds | 394,000 |  | 524,000 |  | 1,300,000 |  | 1,700,000 |  |  |  |
Equity Securities Without Readily Determinable Fair Values, Unrealized Gain (Loss) | 0 |  | 187,000 |  | 1,800,000 |  | 187,000 |  |  |  |
U S Global Investors Funds [Member] |  |  |  |  |  |  |  |  |  |  |
Statement [Line Items] |  |  |  |  |  |  |  |  |  |  |
Investment Owned, Fair Value | 12,400,000 |  |  | 12,800,000 | 12,400,000 |  |  |  |  |  |
HIVE Blockchain Technologies Ltd. [Member] | Convertible Securities [Member] |  |  |  |  |  |  |  |  |  |  |
Statement [Line Items] |  |  |  |  |  |  |  |  |  |  |
Investment Owned, Balance, Principal Amount |  |  |  |  |  |  |  |  |  |  | $ 15,000,000.0
HIVE Blockchain Technologies Ltd. [Member] | Warrants and Convertible Debentures [Member] | Fair Value, Inputs, Level 3 [Member] | Available-for-sale Securities and Equity Securities [Member] |  |  |  |  |  |  |  |  |  |  |
Statement [Line Items] |  |  |  |  |  |  |  |  |  |  |
Investment Owned, Fair Value | 7,900,000 |  |  | 11,100,000 | 7,900,000 |  |  |  |  |  |
HIVE Blockchain Technologies Ltd. [Member] | Unsecured Convertible Debentures [Member] |  |  |  |  |  |  |  |  |  |  |
Statement [Line Items] |  |  |  |  |  |  |  |  |  |  |
Debt Securities, Available-for-Sale, Total | 7,600,000 |  |  | 10,600,000 | $ 7,600,000 |  |  |  |  |  |
OCI, Debt Securities, Available-for-Sale, Unrealized Holding Gain (Loss), before Adjustment, after Tax | $ 6,900,000 |  |  |  |  |  |  |  |  |  |
HIVE Blockchain Technologies Ltd. [Member] | Unsecured Convertible Debentures [Member] | Convertible Debt Securities [Member] |  |  |  |  |  |  |  |  |  |  |
Statement [Line Items] |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage | 8.00% |  |  |  | 8.00% |  |  |  |  |  |
Debt Instrument, Convertible, Conversion Price (in dollars per share) | $ / shares | $ 11.70 |  |  |  | $ 11.70 |  |  |  |  |  | $ 2.34
Investment Income, Net | $ 394,000 |  | $ 524,000 |  | $ 1,300,000 |  | 1,700,000 |  |  |  |
HIVE Blockchain Technologies Ltd. [Member] | Common Shares Purchase Warrants [Member] |  |  |  |  |  |  |  |  |  |  |
Statement [Line Items] |  |  |  |  |  |  |  |  |  |  |
Investment, Common Share Purchase Warrants (in shares) | shares | 5,000,000 |  |  |  | 5,000,000 |  |  |  |  |  |
Class of Warrant or Right, Exercise Price of Warrants or Rights (in CAD per share) | $ / shares |  |  |  |  |  |  |  | $ 3.00 | $ 15.00 |  |
Class of Warrant or Right, Number of Securities Called by Each Warrant or Right (in shares) | shares | 5 |  |  |  | 5 |  |  |  |  |  |
Equity Securities, FV-NI, Total | $ 222,000 |  |  | 515,000 | $ 222,000 |  |  |  |  |  |
HIVE Blockchain Technologies Ltd. [Member] | Common Shares Purchase Warrants [Member] | Estimate of Fair Value Measurement [Member] |  |  |  |  |  |  |  |  |  |  |
Statement [Line Items] |  |  |  |  |  |  |  |  |  |  |
Equity Securities, FV-NI, Total | 5,900,000 |  |  |  | 5,900,000 |  |  |  |  |  |
Debt Securities, Available-for-Sale, Total | 16,000,000.0 |  |  |  | 16,000,000.0 |  |  |  |  |  |
HIVE Blockchain Technologies Ltd. [Member] | Convertible Securities [Member] |  |  |  |  |  |  |  |  |  |  |
Statement [Line Items] |  |  |  |  |  |  |  |  |  |  |
Investment Owned, Balance, Principal Amount | 8,300,000 |  |  |  | 8,300,000 |  |  |  |  |  |
Thunderbird Entertainment Group [Member] |  |  |  |  |  |  |  |  |  |  |
Statement [Line Items] |  |  |  |  |  |  |  |  |  |  |
Equity Securities, FV-NI, Realized Gain |  |  |  |  |  |  | $ 1,900,000 |  |  |  |
The Sonar Company [Member] |  |  |  |  |  |  |  |  |  |  |
Statement [Line Items] |  |  |  |  |  |  |  |  |  |  |
Equity Securities without Readily Determinable Fair Value, Amount | 362,000 |  |  |  | 362,000 |  |  |  |  |  |
Other Investments and Securities, at Cost | $ 175,000 |  |  |  | $ 175,000 |  |  |  |  |  |
Investment Owned, Direct Percentage | 2.80% |  |  |  | 2.80% |  |  |  |  |  |
Galileo New Economy Fund L P [Member] |  |  |  |  |  |  |  |  |  |  |
Statement [Line Items] |  |  |  |  |  |  |  |  |  |  |
Equity Method Investment, Ownership Percentage |  |  |  |  |  |  |  |  |  | 22.00% |
Income (Loss) from Equity Method Investments | $ 173,000 |  |  |  | $ 206,000 |  |  |  |  |  |
Galileo New Economy Fund L P [Member] | Cash [Member] |  |  |  |  |  |  |  |  |  |  |
Statement [Line Items] |  |  |  |  |  |  |  |  |  |  |
Proceeds from Equity Method Investment, Distribution, Return of Capital |  |  |  | 85,000 |  |  |  |  |  |  |
Galileo New Economy Fund L P [Member] | Common Shares [Member] |  |  |  |  |  |  |  |  |  |  |
Statement [Line Items] |  |  |  |  |  |  |  |  |  |  |
Proceeds from Equity Method Investment, Distribution, Return of Capital |  |  |  | $ 228,000 |  |  |  |  |  |  |
[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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