Note 2 - Investment Securities - Interest Income From Investment Securities (Details) - USD ($) $ in Thousands |
12 Months Ended | ||
---|---|---|---|
Dec. 31, 2020 |
Dec. 31, 2019 |
Dec. 31, 2018 |
|
Taxable | $ 93,163 | $ 77,800 | $ 65,330 |
Tax-exempt from regular federal income tax | 12,151 | 15,736 | 19,438 |
Total interest income from investment securities | $ 105,314 | $ 93,536 | $ 84,768 |