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Note 10 - Distributions (Details Textual) - $ / shares		3 Months Ended		9 Months Ended		12 Months Ended
	Oct. 22, 2025	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024	Dec. 31, 2024
Common Stock, Dividends, Per Share, Cash Paid (in dollars per share)		$ 0.33
Investment Company, Investment Income (Loss), Per Share, Basic (in dollars per share)		0.32	$ 0.32	$ 0.87	$ 1.06
Earnings Per Share, Basic, Undistributed (in dollars per share)		0.93
Common Stock, Dividends, Per Share, Declared (in dollars per share)		$ 0.33	$ 0.33	$ 0.99	$ 1.04	$ 1.37
O 2025 Q4 Dividends [Member] | Subsequent Event [Member]
Common Stock, Dividends, Per Share, Declared (in dollars per share)	$ 0.11

X

- Definition

Aggregate dividends paid during the period for each share of common stock outstanding.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 505
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.3-04)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480008/505-10-S99-1

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- Definition

Aggregate dividends declared during the period for each share of common stock outstanding.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 505
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.3-04)
-Publisher FASB
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- Definition

The earnings attributable to each security on the basis that all of the earnings for the period had been distributed (to the extent that each security may share in earnings). This is the earnings amount which reflects the participation rights in undistributed earnings of each security.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 260
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 60B
-Subparagraph (d)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482689/260-10-45-60B

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- Definition

Per-basic-share or unit amount, after investment expense, of dividend and interest investment income (loss) from investment held by investment company.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 946
-SubTopic 205
-Name Accounting Standards Codification
-Section 50
-Paragraph 7
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478494/946-205-50-7

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