Note 12 - Long-term Debt - Schedule of Long-term Debt (Details) - USD ($)	3 Months Ended	12 Months Ended
	Sep. 30, 2024	Dec. 31, 2023
Long-Term Debt, Face Value	$ 60,310,000	$ 60,310,000
Long-Term Debt, Carrying Value	59,041,000	58,956,000
Subordinated Notes Payable [Member]
Long-Term Debt, Face Value	50,000,000	50,000,000
Long-Term Debt, Carrying Value	$ 50,000,000	$ 50,000,000
Long-Term Debt, Period End Interest Rate	3.50%	3.50%
Junior Subordinated Debenture Trust I [Member]
Long-Term Debt, Basis Spread on Variable Rate	0.26%	0.26%
Long-Term Debt, Adjustment, Variable Rate	$ 3,100	$ 3,100
Long-Term Debt, Face Value	4,124,000	4,124,000
Long-Term Debt, Carrying Value	$ 3,616,000	$ 3,583,000
Long-Term Debt, Period End Interest Rate	8.02%	8.72%
Junior Subordinated Debenture Trust II [Member]
Long-Term Debt, Basis Spread on Variable Rate	0.26%	0.26%
Long-Term Debt, Adjustment, Variable Rate	$ 1,800	$ 1,800
Long-Term Debt, Face Value	6,186,000	6,186,000
Long-Term Debt, Carrying Value	$ 5,425,000	$ 5,373,000
Long-Term Debt, Period End Interest Rate	7.01%	7.45%