Note 6 - Loans and Allowance for Credit Losses for Loans (Details Textual) - USD ($)	6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Dec. 31, 2023
Financing Receivable, Accrued Interest, after Allowance for Credit Loss	$ 6,200,000		$ 5,900,000
Financing Receivable, Nonaccrual, Interest Income	0	$ 0
Financing Receivable, Modified, Commitment to Lend	$ 0	$ 50,000