Note 22 - Commitments - (Details Textual) - USD ($)	Dec. 31, 2023	Dec. 31, 2022
Federal Home Loan Bank Advances [Member]
Letters of Credit Outstanding, Amount	$ 301,700,000	$ 173,700,000
Letters of Credit Expiring January 2024 [Member]
Letters of Credit Outstanding, Amount	93,200,000
Letters of Credit Expiring February 2024 [Member]
Letters of Credit Outstanding, Amount	162,700,000
Letters of Credit Expiring March 2024 [Member]
Letters of Credit Outstanding, Amount	403,000
Letters of Credit Expiring in April 2024 [Member]
Letters of Credit Outstanding, Amount	28,900,000
Letters of Credit Expiring May 2024 [Member]
Letters of Credit Outstanding, Amount	7,100,000
Letters of Credit Expiring June 2024 [Member]
Letters of Credit Outstanding, Amount	4,600,000
Letters of Credit Expiring August 2024 [Member]
Letters of Credit Outstanding, Amount	3,400,000
Letters of Credit Expiring September 2024 [Member]
Letters of Credit Outstanding, Amount	251,000
Letters of Credit Expiring November 2024 [Member]
Letters of Credit Outstanding, Amount	675,000
Letters of Credit Expiring December 2024 [Member]
Letters of Credit Outstanding, Amount	$ 329,000