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Note 16 - Subsequent Events (Details Textual) - USD ($)	3 Months Ended							9 Months Ended
Note 16 - Subsequent Events (Details Textual) - USD ($)	Dec. 31, 2024	Sep. 30, 2024	Jun. 30, 2024	Mar. 31, 2024	Sep. 30, 2023	Jun. 30, 2023	Mar. 31, 2023	Sep. 30, 2024	Sep. 30, 2023
Dividends declared per share (in dollars per share)		$ 0.04	$ 0.04	$ 0.04	$ 0.025	$ 0.025	$ 0.025	$ 0.12	$ 0.075
O, 2024, Q4, Dividends [Member] \| Forecast [Member]
Dividends declared per share (in dollars per share)	$ 0.04
Dividends	$ 5,000,000
O, 2024, Q4, Dividend Equivalent, Dividends [Member] \| Forecast [Member]
Dividends	538,000
Dividends Payable	$ 86,000