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Note 16 - Subsequent Events (Details Textual) - Series D Preferred Stock [Member] - $ / shares		9 Months Ended
	Oct. 07, 2025	Sep. 30, 2025	Sep. 30, 2024
Preferred Stock, Dividend Rate, Percentage		9.375%
Preferred Stock, Dividends Per Share, Declared (in dollars per share)		$ 1.75779	$ 1.75779
Subsequent Event [Member]
Preferred Stock, Dividend Rate, Percentage	9.375%
Subsequent Event [Member] | O 2025 M11 Dividends [Member]
Preferred Stock, Dividends Per Share, Declared (in dollars per share)	$ 0.19531
Subsequent Event [Member] | O 2025 M12 Dividends [Member]
Preferred Stock, Dividends Per Share, Declared (in dollars per share)	0.19531
Subsequent Event [Member] | O 2026 M1 Dividends [Member]
Preferred Stock, Dividends Per Share, Declared (in dollars per share)	$ 0.19531

X

- Definition

The percentage rate used to calculate dividend payments on preferred stock.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 505
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 13
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481112/505-10-50-13

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 946
-SubTopic 320
-Name Accounting Standards Codification
-Section S99
-Paragraph 2
-Subparagraph (SX 210.12-12A(Column A)(Footnote 3))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147477271/946-320-S99-2

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 946
-SubTopic 320
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.12-12(Column A)(Footnote 4))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147477271/946-320-S99-1

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Topic 946
-SubTopic 320
-Name Accounting Standards Codification
-Section S99
-Paragraph 3
-Subparagraph (SX 210.12-12B(Column A)(Footnote 3))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147477271/946-320-S99-3

Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Topic 946
-SubTopic 320
-Name Accounting Standards Codification
-Section S99
-Paragraph 6
-Subparagraph (SX 210.12-14(Column A)(Footnote 3))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147477271/946-320-S99-6

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X

- Definition

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

+ References

No definition available.

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