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Note 8 - Federal Income Tax (Tables) | 12 Months Ended
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Dec. 31, 2023
Notes Tables |
Federal Income Tax Note [Table Text Block] |
|  | Years Ended December 31, |
|  | 2023 |  |  | 2022 |  |  | 2021 |
|  | (In thousands) |
Net (decrease) increase in net assets resulting from operations |  | $ | (17,185 | ) |  | $ | 21,151 |  |  | $ | 27,782 |
Net unrealized depreciation (appreciation) on investments |  |  | 48,780 |  |  |  | 5,552 |  |  |  | (3,205 | )
Other book-tax differences |  |  | 931 |  |  |  | 3,292 |  |  |  | 1,462 |
Change in capital loss carry forward |  |  | 29,853 |  |  |  | 9,484 |  |  |  | 3,643 |
Taxable income before deductions for distributions |  | $ | 62,379 |  |  | $ | 39,479 |  |  | $ | 29,682 |
Schedule of Tax Characters of Distribution Paid [Table Text Block] |
|  | Years Ended December 31, |
|  | 2023 |  |  | 2022 |  |  | 2021 |
|  | (In thousands) |
Ordinary income |  | $ | 42,576 |  |  | $ | 31,490 |  |  | $ | 25,099 |
Total |  | $ | 42,576 |  |  | $ | 31,490 |  |  | $ | 25,099 |
Schedule of Investment Company, Distributable Earnings (Loss) [Table Text Block] |
|  | As of December 31, |
|  | 2023 |  |  | 2022 |  |  | 2021 |
|  | (In thousands) |
Undistributed ordinary income |  | $ | 38,616 |  |  | $ | 18,813 |  |  | $ | 10,825 |
Long term capital loss carry forward |  |  | (102,908 | ) |  |  | (73,055 | ) |  |  | (63,571 | )
Unrealized appreciation |  |  | 14,935 |  |  |  | 18,542 |  |  |  | 12,973 |
Unrealized depreciation |  |  | (65,032 | ) |  |  | (19,771 | ) |  |  | (8,738 | )
Other temporary differences |  |  | 12,547 |  |  |  | 11,875 |  |  |  | 7,465 |
Total |  | $ | (101,842 | ) |  | $ | (43,596 | ) |  | $ | (41,046 | )

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- Definition Tabular disclosure of the federal tax basis of investment holdings. This item captures the aggregate cost of securities, aggregate gross unrealized appreciation for all securities in which there is an excess of value over tax cost, aggregate gross unrealized depreciation for all securities in which there is an excess of tax cost over value, net unrealized appreciation (depreciation), and an explanation of the differences between tax and book. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 946 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 3 -Subparagraph (SX 210.6-03(h)(2)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479886/946-10-S99-3 + Details
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