Note 7 - Deposits - Maturities of Certificates (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Within one year or less	$ 523,584	$ 495,605
After one year through two years	45,754	79,537
After two years through three years	31,221	24,777
After three years through four years	24,305	28,302
After four years through five years	20,506	22,817
Total certificates of deposit	$ 645,370	$ 651,038