Note 9 - Long-term Debt - Schedule of Debt (Details) - USD ($)	Dec. 31, 2023	Dec. 31, 2022
Long-term debt	$ 27,394,417	$ 27,416,239
Junior Subordinated Debt [Member]
Long-term debt	26,804,000	26,804,000
Notes Payable to Banks [Member]
Long-term debt	$ 590,000	$ 612,000