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Note 11 - Stockholders' Equity and Stock Incentive Plans - Dividends (Details) - $ / shares	3 Months Ended
	Dec. 31, 2024	Sep. 30, 2024	Jun. 30, 2024	Mar. 31, 2024	Dec. 31, 2023	Sep. 30, 2023	Jun. 30, 2023	Mar. 31, 2023	Dec. 31, 2022	Sep. 30, 2022	Jun. 30, 2022	Mar. 31, 2022	Oct. 15, 2024	Jul. 15, 2024	Apr. 15, 2024	Jan. 15, 2024	Oct. 15, 2023	Jul. 15, 2023	Apr. 15, 2023	Jan. 15, 2023	Oct. 15, 2022	Jul. 15, 2022	Apr. 15, 2022
O 2022 Q1 Dividends [Member]
Dividends, record date												Mar. 15, 2022
Dividends, payment date												Apr. 15, 2022
Dividends, amount per share (in dollars per share)																							$ 0.15
O 2022 Q2 Dividends [Member]
Dividends, record date											Jun. 30, 2022
Dividends, payment date											Jul. 15, 2022
Dividends, amount per share (in dollars per share)																						$ 0.15
O 2022 Q3 Dividends [Member]
Dividends, record date										Sep. 30, 2022
Dividends, payment date										Oct. 15, 2022
Dividends, amount per share (in dollars per share)																					$ 0.15
O 2022 Q4 Dividends [Member]
Dividends, record date									Dec. 19, 2022
Dividends, payment date									Jan. 15, 2023
Dividends, amount per share (in dollars per share)																				$ 0.15
O 2023 Q1 Dividends [Member]
Dividends, record date								Mar. 15, 2023
Dividends, payment date								Apr. 15, 2023
Dividends, amount per share (in dollars per share)																			$ 0.16
O 2023 Q2 Dividends [Member]
Dividends, record date							Jun. 15, 2023
Dividends, payment date							Jul. 15, 2023
Dividends, amount per share (in dollars per share)																		$ 0.16
O 2023 Q3 Dividends [Member]
Dividends, record date						Sep. 15, 2023
Dividends, payment date						Oct. 15, 2023
Dividends, amount per share (in dollars per share)																	$ 0.16
O 2023 Q4 Dividends [Member]
Dividends, record date					Dec. 22, 2023
Dividends, payment date					Jan. 15, 2024
Dividends, amount per share (in dollars per share)																$ 0.16
O 2024 Q1 Dividends [Member]
Dividends, record date				Mar. 15, 2024
Dividends, payment date				Apr. 15, 2024
Dividends, amount per share (in dollars per share)															$ 0.17
O 2024 Q2 Dividends [Member]
Dividends, record date			Jun. 15, 2024
Dividends, payment date			Jul. 15, 2024
Dividends, amount per share (in dollars per share)														$ 0.17
O 2024 Q3 Dividends [Member]
Dividends, record date		Sep. 15, 2024
Dividends, payment date		Oct. 15, 2024
Dividends, amount per share (in dollars per share)													$ 0.17
O 2024 Q4 Dividends [Member]
Dividends, record date	Dec. 16, 2024
Dividends, payment date	Jan. 15, 2025
Dividends, amount per share (in dollars per share)	$ 0.17

X

- Definition

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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- Definition

The per share amount of a dividend declared, but not paid, as of the financial reporting date.

+ 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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Date the holder must own the stock to be entitled to the dividend, in YYYY-MM-DD format.

+ References

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