Note 8 - Dividends Declared and Paid - Schedule of Dividends Declared (Details) - $ / shares	3 Months Ended
Mar. 31, 2025	Mar. 31, 2024
Dividends declared (in dollars per share)	$ 0.09	$ 0.07
Distributions declared (in dollars per share)	0.09	0.07
Dividend per preferred share (in dollars per share)	$ 0.41406	$ 0.41406
O 2025 Q1 Dividends [Member]
Record date	Mar. 31, 2025
Payment date	Apr. 15, 2025
Dividends declared (in dollars per share)	$ 0.09
Distributions declared (in dollars per share)	0.09
Dividend per preferred share (in dollars per share)	$ 0.41406
O 2024 Q1 Dividends [Member]
Record date		Mar. 28, 2024
Payment date		Apr. 15, 2024
Dividends declared (in dollars per share)		$ 0.07
Distributions declared (in dollars per share)		0.07
Dividend per preferred share (in dollars per share)		$ 0.41406

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

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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Per unit of ownership amount of cash distributions declared to unit-holder of a limited partnership (LP).

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Date the declared dividend will be paid, in YYYY-MM-DD format.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 50
-Paragraph 3
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482913/230-10-50-3

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

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