Note 7 - Long-term Debt - Schedule of Debt (Details) - USD ($)	Mar. 31, 2025	Dec. 31, 2024
Long-term debt	$ 27,362,762	$ 27,368,158
Junior Subordinated Debt [Member]
Long-term debt	26,804,000	26,804,000
Notes Payable to Banks [Member]
Long-term debt	$ 559,000	$ 564,000