Note 8 - Deposits - Schedule of Maturities of Time Deposits (Details) $ in Thousands	Sep. 30, 2023 USD ($)
One year, 250,000 and under	$ 1,229,527
One year, over 250,000	733,866
One year	1,963,393
Two to three years, 250,000 and under	7,537
Two to three years, over 250,000	1,662
Two to three years	9,199
Over three years, 250,000 and under	767
Over three years, over 250,000	300
Over three years	1,067
Total, 250,000 and under	1,237,831
Total, over 250,000	735,828
Total	$ 1,973,659