Note 11 - FHLB Advances and Other Borrowings (Details Textual) - USD ($) $ in Thousands |
3 Months Ended | |||
|---|---|---|---|---|
Mar. 31, 2026 |
Mar. 31, 2025 |
Dec. 31, 2025 |
Aug. 06, 2024 |
|
| Advance from Federal Home Loan Bank | $ 300,000 | $ 300,000 | ||
| Proceeds from FHLBank Advance, Investing Activities | 300,000 | $ 775,000 | ||
| Payments of FHLBank Borrowings, Financing Activities | 300,000 | 775,000 | ||
| Proceeds from FHLBank Advance, Investing Activities, Net of Short Term Maturities | 300,000 | 300,000 | ||
| Payments of FHLBank Borrowings, Financing Activities, Net of Short Term Maturities | 300,000 | $ 300,000 | ||
| Federal Home Loan Bank, Advances, General Debt Obligations, Maximum Amount Available | 1,520,000 | 1,470,000 | ||
| Correspondent Banks [Member] | ||||
| Federal Funds Corresponding Banks Maximum Amount Available | 80,000 | 80,000 | ||
| Federal Funds From Corresponding Banks, Amount Outstanding | 0 | $ 0 | ||
| Three Month Advance Maturing November 2024 [Member] | ||||
| Advance from Federal Home Loan Bank | $ 300,000 | $ 100,000 | ||