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Note 5 - Transactions With Affiliated Companies (Tables) | 6 Months Ended
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Jun. 30, 2023
Notes Tables |
Investments in and Advances to Affiliates [Table Text Block] |
|  |  |  |  |  |  |  |  |  | Three months ended June 30, 2023 |  |  |  |  |  |  |  |  |
|  | Fair value at |  |  |  |  |  |  |  |  |  |  | Transfers |  |  |  |  |  |  | Net |  |  |  |  |  |  | Fair value at |
Portfolio |  | March 31, |  |  |  |  |  |  |  |  |  |  | in/(out) at |  |  | Dividends |  |  | unrealized |  |  | Net realized |  |  | June 30, |
Company |  | 2023 |  |  | Purchases |  |  | Sales |  |  | fair value |  |  | declared |  |  | gain/(loss) |  |  | gain/(loss) |  |  | 2023 |
|  | (In thousands) |
Cadrenal Therapeutics, Inc. |  |  | 846 |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 60 |  |  |  | — |  |  |  | 906 |
Total non-controlled affiliates |  | $ | 846 |  |  | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | 60 |  |  | $ | — |  |  | $ | 906 |
|  |  |  |  |  |  |  |  |  | Six months ended June 30, 2023 |  |  |  |  |  |  |  |  |
|  | Fair value at |  |  |  |  |  |  |  |  |  |  | Transfers |  |  |  |  |  |  | Net |  |  |  |  |  |  | Fair value at |
Portfolio |  | December 31, |  |  |  |  |  |  | Principal |  |  | in/(out) at |  |  | Discount |  |  | unrealized |  |  | Net realized |  |  | June 30, |
Company |  | 2022 |  |  | Purchases |  |  | Payments |  |  | fair value |  |  | accretion |  |  | gain/(loss) |  |  | gain/(loss) |  |  | 2023 |
|  | (In thousands) |
Cadrenal Therapeutics, Inc. |  | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | 906 |  |  | $ | — |  |  | $ | 906 |
Total non-controlled affiliates |  | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | 906 |  |  | $ | — |  |  | $ | 906 |
|  |  |  |  |  |  |  |  |  | Three months ended June 30, 2022 |  |  |  |  |  |  |  |  |
|  | Fair value at |  |  |  |  |  |  |  |  |  |  | Transfers |  |  |  |  |  |  | Net |  |  |  |  |  |  | Fair value at |
Portfolio |  | March 31, |  |  |  |  |  |  |  |  |  |  | in/(out) at |  |  | Dividends |  |  | unrealized |  |  | Net realized |  |  | June 30, |
Company |  | 2022 |  |  | Purchases |  |  | Sales |  |  | fair value |  |  | declared |  |  | gain/(loss) |  |  | gain/(loss) |  |  | 2022 |
|  | (In thousands) |
HESP LLC |  |  | — |  |  |  | — |  |  |  | (200 | ) |  |  | — |  |  |  | — |  |  |  | 1,400 |  |  |  | (1,200 | ) |  |  | — |
Total controlled affiliates |  | $ | — |  |  | $ | — |  |  | $ | (200 | ) |  | $ | — |  |  | $ | — |  |  | $ | 1,400 |  |  | $ | (1,200 | ) |  | $ | — |
|  |  |  |  |  |  |  |  |  | Six months ended June 30, 2022 |  |  |  |  |  |  |  |  |
|  | Fair value at |  |  |  |  |  |  |  |  |  |  | Transfers |  |  |  |  |  |  | Net |  |  |  |  |  |  | Fair value at |
Portfolio |  | December 31, |  |  |  |  |  |  | Principal |  |  | in/(out) at |  |  | Discount |  |  | unrealized |  |  | Net realized |  |  | June 30, |
Company |  | 2021 |  |  | Purchases |  |  | Payments |  |  | fair value |  |  | accretion |  |  | gain/(loss) |  |  | gain/(loss) |  |  | 2022 |
|  | (In thousands) |
HESP LLC |  |  | — |  |  |  | — |  |  |  | (250 | ) |  |  | — |  |  |  | — |  |  |  | 1,450 |  |  |  | (1,200 | ) |  |  | — |
Total controlled affiliates |  | $ | — |  |  | $ | — |  |  | $ | (250 | ) |  | $ | — |  |  | $ | — |  |  | $ | 1,450 |  |  | $ | (1,200 | ) |  | $ | — |

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- Definition Tabular disclosure of investments in and advances to affiliates. Does not include the tabular disclosure of the disaggregation of investments in and advances to affiliates across legal entities. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 946 -SubTopic 320 -Name Accounting Standards Codification -Section S99 -Paragraph 6 -Subparagraph (SX 210.12-14) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480032/946-320-S99-6 + Details
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