Note 2 - Securities (Tables)
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6 Months Ended |
Jun. 30, 2025 |
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| Notes Tables |
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| Schedule of Available-for-sale and Held-to-Maturity Securities Reconciliation [Table Text Block] |
| | | Amortized Cost | | | Gross Unrealized Gains | | | Gross Unrealized Losses | | | Estimated Fair Value | | | Allowance for Credit Losses | |
| | | (In thousands) | |
| Available for Sale | | | | | | | | | | | | | | | | | | | | |
| Municipal bonds | | $ | 92,800 | | | $ | — | | | $ | (15,476 | ) | | $ | 77,324 | | | $ | — | |
| U.S. government agency issued asset-backed securities (ABS agency) | | | 12,408 | | | | — | | | | (110 | ) | | | 12,298 | | | | — | |
| Corporate issued asset-backed securities (ABS corporate) | | | 13,070 | | | | 40 | | | | (5 | ) | | | 13,105 | | | | — | |
| Corporate issued debt securities (Corporate debt) | | | 58,309 | | | | 125 | | | | (2,674 | ) | | | 55,760 | | | | — | |
| U.S. Small Business Administration securities (SBA) | | | 7,480 | | | | 34 | | | | (10 | ) | | | 7,504 | | | | — | |
| Mortgage-backed securities: | | | | | | | | | | | | | | | | | | | | |
| U.S. government agency issued mortgage-backed securities (MBS agency) | | | 107,161 | | | | 228 | | | | (11,375 | ) | | | 96,014 | | | | — | |
| Non-agency issued mortgage-backed securities (MBS non-agency) | | | 44,978 | | | | 7 | | | | (3,475 | ) | | | 41,510 | | | | — | |
| Total securities available for sale | | $ | 336,206 | | | $ | 434 | | | $ | (33,125 | ) | | $ | 303,515 | | | $ | — | |
| | | Amortized Cost | | | Gross Unrealized Gains | | | Gross Unrealized Losses | | | Estimated Fair Value | | | Allowance for Credit Losses | |
| | | (In thousands) | |
| Available for Sale | | | | | | | | | | | | | | | | | | | | |
| Municipal bonds | | $ | 93,212 | | | $ | — | | | $ | (15,336 | ) | | $ | 77,876 | | | $ | — | |
| ABS agency | | | 12,944 | | | | 16 | | | | (84 | ) | | | 12,876 | | | | — | |
| ABS corporate | | | 16,065 | | | | 62 | | | | (5 | ) | | | 16,122 | | | | — | |
| Corporate debt | | | 58,106 | | | | 55 | | | | (3,670 | ) | | | 54,491 | | | | — | |
| SBA | | | 8,664 | | | | 18 | | | | (16 | ) | | | 8,666 | | | | — | |
| Mortgage-backed securities: | | | | | | | | | | | | | | | | | | | | |
| MBS agency | | | 111,372 | | | | 83 | | | | (12,758 | ) | | | 98,697 | | | | — | |
| MBS non-agency | | | 75,902 | | | | 4 | | | | (4,290 | ) | | | 71,616 | | | | — | |
| Total securities available for sale | | $ | 376,265 | | | $ | 238 | | | $ | (36,159 | ) | | $ | 340,344 | | | $ | — | |
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| Debt Securities, Available-for-Sale, Unrealized Loss Position, Fair Value [Table Text Block] |
| | | Less Than Twelve Months | | | Twelve Months or Longer | | | Total | |
| | | Gross Unrealized Losses | | | Fair Value | | | Gross Unrealized Losses | | | Fair Value | | | Gross Unrealized Losses | | | Fair Value | |
| | | (In thousands) | |
| Available for Sale | | | | | | | | | | | | | | | | | | | | | | | | |
| Municipal bonds | | $ | — | | | $ | — | | | $ | (15,476 | ) | | $ | 77,324 | | | $ | (15,476 | ) | | $ | 77,324 | |
| ABS agency | | | (3 | ) | | | 3,243 | | | | (107 | ) | | | 9,055 | | | | (110 | ) | | | 12,298 | |
| ABS corporate | | | (1 | ) | | | 1,510 | | | | (4 | ) | | | 1,555 | | | | (5 | ) | | | 3,065 | |
| Corporate debt | | | — | | | | — | | | | (2,674 | ) | | | 41,285 | | | | (2,674 | ) | | | 41,285 | |
| SBA | | | — | | | | — | | | | (10 | ) | | | 901 | | | | (10 | ) | | | 901 | |
| Mortgage-backed securities: | | | | | | | | | | | | | | | | | | | | | | | | |
| MBS agency | | | (161 | ) | | | 7,613 | | | | (11,214 | ) | | | 55,175 | | | | (11,375 | ) | | | 62,788 | |
| MBS non-agency | | | (36 | ) | | | 4,330 | | | | (3,439 | ) | | | 34,163 | | | | (3,475 | ) | | | 38,493 | |
| Total available-for-sale in a loss position | | $ | (201 | ) | | $ | 16,696 | | | $ | (32,924 | ) | | $ | 219,458 | | | $ | (33,125 | ) | | $ | 236,154 | |
| | | Less Than Twelve Months | | | Twelve Months or Longer | | | Total | |
| | | Gross Unrealized Losses | | | Fair Value | | | Gross Unrealized Losses | | | Fair Value | | | Gross Unrealized Losses | | | Fair Value | |
| | | (In thousands) | |
| Available for Sale | | | | | | | | | | | | | | | | | | | | | | | | |
| Municipal bonds | | $ | — | | | $ | — | | | $ | (15,336 | ) | | $ | 77,876 | | | $ | (15,336 | ) | | $ | 77,876 | |
| ABS agency | | | (21 | ) | | | 2,957 | | | | (63 | ) | | | 6,311 | | | | (84 | ) | | | 9,268 | |
| ABS corporate | | | — | | | | — | | | | (5 | ) | | | 2,798 | | | | (5 | ) | | | 2,798 | |
| Corporate debt | | | — | | | | — | | | | (3,670 | ) | | | 46,355 | | | | (3,670 | ) | | | 46,355 | |
| SBA | | | (16 | ) | | | 3,093 | | | | — | | | | — | | | | (16 | ) | | | 3,093 | |
| Mortgage-backed securities: | | | | | | | | | | | | | | | | | | | | | | | | |
| MBS agency | | | (545 | ) | | | 26,531 | | | | (12,213 | ) | | | 51,181 | | | | (12,758 | ) | | | 77,712 | |
| MBS non-agency | | | (71 | ) | | | 9,352 | | | | (4,219 | ) | | | 57,470 | | | | (4,290 | ) | | | 66,822 | |
| Total available-for-sale in a loss position | | $ | (653 | ) | | $ | 41,933 | | | $ | (35,506 | ) | | $ | 241,991 | | | $ | (36,159 | ) | | $ | 283,924 | |
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| Investments Classified by Contractual Maturity Date [Table Text Block] |
| | | June 30, 2025 | |
| | | Available-for-Sale | |
| | | Amortized Cost | | | Estimated Fair Value | |
| | | (In thousands) | |
| Mortgage-backed securities: | | | | | | | | |
| Due within one year | | $ | 5,929 | | | $ | 5,851 | |
| Due after one through five years | | | 10,404 | | | | 10,373 | |
| Due after five through ten years | | | 7,962 | | | | 7,633 | |
| Due after ten years | | | 127,844 | | | | 113,667 | |
| Total mortgage-backed securities | | | 152,139 | | | | 137,524 | |
| All other investment securities: | | | | | | | | |
| Due within one year | | | — | | | | — | |
| Due after one through five years | | | 26,013 | | | | 25,046 | |
| Due after five through ten years | | | 54,904 | | | | 51,350 | |
| Due after ten years | | | 103,150 | | | | 89,595 | |
| Total all other investment securities | | | 184,067 | | | | 165,991 | |
| Total investment securities | | $ | 336,206 | | | $ | 303,515 | |
| | | December 31, 2024 | |
| | | Available-for-Sale | |
| | | Amortized Cost | | | Estimated Fair Value | |
| | | (In thousands) | |
| Mortgage-backed securities: | | | | | | | | |
| Due within one year | | $ | 26,690 | | | $ | 26,509 | |
| Due after one through five years | | | 11,564 | | | | 11,539 | |
| Due after five through ten years | | | 8,080 | | | | 7,609 | |
| Due after ten years | | | 140,940 | | | | 124,656 | |
| Total mortgage-backed securities | | | 187,274 | | | | 170,313 | |
| All other investment securities: | | | | | | | | |
| Due within one year | | | — | | | | — | |
| Due after one through five years | | | 21,559 | | | | 20,751 | |
| Due after five through ten years | | | 58,535 | | | | 53,321 | |
| Due after ten years | | | 108,897 | | | | 95,959 | |
| Total all other investment securities | | | 188,991 | | | | 170,031 | |
| Total investment securities | | $ | 376,265 | | | $ | 340,344 | |
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