Note 2 - Securities (Tables)
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9 Months Ended |
Sep. 30, 2026 |
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| Notes Tables |
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| Schedule of Available-for-sale and Held-to-Maturity Securities Reconciliation [Table Text Block] |
| (dollars in thousands) | | Amortized Cost | | | Gross Unrealized Gains | | | Gross Unrealized Losses | | | Estimated Fair Value | | | Allowance for Credit Losses | |
| Available for Sale | | | | | | | | | | | | | | | | | | | | |
| Municipal bonds | | $ | 91,412 | | | $ | — | | | $ | (18,654 | ) | | $ | 72,758 | | | $ | — | |
| U.S. government agency issued asset-backed securities (ABS agency) | | | 11,151 | | | | 19 | | | | — | | | | 11,170 | | | | — | |
| Corporate issued asset-backed securities (ABS corporate) | | | 21,093 | | | | 7 | | | | (12 | ) | | | 21,088 | | | | — | |
| Corporate issued debt securities (Corporate debt) | | | 61,575 | | | | 286 | | | | (1,670 | ) | | | 60,191 | | | | — | |
| U.S. Small Business Administration securities (SBA) | | | 4,915 | | | | 22 | | | | (14 | ) | | | 4,923 | | | | — | |
| Mortgage-backed securities: | | | | | | | | | | | | | | | | | | | | |
| U.S. government agency issued mortgage-backed securities (MBS agency) | | | 105,381 | | | | 32 | | | | (14,196 | ) | | | 91,217 | | | | — | |
| Non-agency issued mortgage-backed securities (MBS non-agency) | | | 52,798 | | | | — | | | | (3,957 | ) | | | 48,841 | | | | — | |
| Total securities available for sale | | $ | 348,325 | | | $ | 366 | | | $ | (38,503 | ) | | $ | 310,188 | | | $ | — | |
| (dollars in thousands) | | Amortized Cost | | | Gross Unrealized Gains | | | Gross Unrealized Losses | | | Estimated Fair Value | | | Allowance for Credit Losses | |
| Available for Sale | | | | | | | | | | | | | | | | | | | | |
| Municipal bonds | | $ | 92,148 | | | $ | — | | | $ | (11,896 | ) | | $ | 80,252 | | | $ | — | |
| ABS agency | | | 11,927 | | | | 28 | | | | (12 | ) | | | 11,943 | | | | — | |
| ABS corporate | | | 7,963 | | | | 2 | | | | (4 | ) | | | 7,961 | | | | — | |
| Corporate debt | | | 39,772 | | | | 251 | | | | (1,222 | ) | | | 38,801 | | | | — | |
| SBA | | | 6,293 | | | | 18 | | | | (18 | ) | | | 6,293 | | | | — | |
| Mortgage-backed securities: | | | | | | | | | | | | | | | | | | | | |
| MBS agency | | | 101,618 | | | | 379 | | | | (10,341 | ) | | | 91,656 | | | | — | |
| MBS non-agency | | | 36,128 | | | | 4 | | | | (2,728 | ) | | | 33,404 | | | | — | |
| Total securities available for sale | | $ | 295,849 | | | $ | 682 | | | $ | (26,221 | ) | | $ | 270,310 | | | $ | — | |
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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 | |
| (dollars in thousands) | | Gross Unrealized Losses | | | Fair Value | | | Gross Unrealized Losses | | | Fair Value | | | Gross Unrealized Losses | | | Fair Value | |
| Available for Sale | | | | | | | | | | | | | | | | | | | | | | | | |
| Municipal bonds | | $ | — | | | $ | — | | | $ | (18,654 | ) | | $ | 72,658 | | | $ | (18,654 | ) | | $ | 72,658 | |
| ABS corporate | | | (12 | ) | | | 8,032 | | | | — | | | | — | | | | (12 | ) | | | 8,032 | |
| Corporate debt | | | (552 | ) | | | 25,953 | | | | (1,118 | ) | | | 21,435 | | | | (1,670 | ) | | | 47,388 | |
| SBA | | | (8 | ) | | | 883 | | | | (6 | ) | | | 596 | | | | (14 | ) | | | 1,479 | |
| Mortgage-backed securities: | | | | | | | | | | | | | | | | | | | | | | | | |
| MBS agency | | | (1,013 | ) | | | 32,124 | | | | (13,183 | ) | | | 52,531 | | | | (14,196 | ) | | | 84,655 | |
| MBS non-agency | | | (284 | ) | | | 27,093 | | | | (3,673 | ) | | | 21,748 | | | | (3,957 | ) | | | 48,841 | |
| Total available-for-sale in a loss position | | $ | (1,869 | ) | | $ | 94,085 | | | $ | (36,634 | ) | | $ | 168,968 | | | $ | (38,503 | ) | | $ | 263,053 | |
| | | Less Than Twelve Months | | | Twelve Months or Longer | | | Total | |
| (dollars in thousands) | | Gross Unrealized Losses | | | Fair Value | | | Gross Unrealized Losses | | | Fair Value | | | Gross Unrealized Losses | | | Fair Value | |
| Available for Sale | | | | | | | | | | | | | | | | | | | | | | | | |
| Municipal bonds | | $ | — | | | $ | — | | | $ | (11,896 | ) | | $ | 80,252 | | | $ | (11,896 | ) | | $ | 80,252 | |
| ABS agency | | | — | | | | — | | | | (12 | ) | | | 4,116 | | | | (12 | ) | | | 4,116 | |
| ABS corporate | | | — | | | | — | | | | (4 | ) | | | 958 | | | | (4 | ) | | | 958 | |
| Corporate debt | | | (8 | ) | | | 993 | | | | (1,214 | ) | | | 27,570 | | | | (1,222 | ) | | | 28,563 | |
| SBA | | | (5 | ) | | | 643 | | | | (13 | ) | | | 2,380 | | | | (18 | ) | | | 3,023 | |
| Mortgage-backed securities: | | | | | | | | | | | | | | | | | | | | | | | | |
| MBS agency | | | (31 | ) | | | 3,871 | | | | (10,310 | ) | | | 57,375 | | | | (10,341 | ) | | | 61,246 | |
| MBS non-agency | | | — | | | | — | | | | (2,728 | ) | | | 31,154 | | | | (2,728 | ) | | | 31,154 | |
| Total available-for-sale in a loss position | | $ | (44 | ) | | $ | 5,507 | | | $ | (26,177 | ) | | $ | 203,805 | | | $ | (26,221 | ) | | $ | 209,312 | |
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| Investments Classified by Contractual Maturity Date [Table Text Block] |
| | | September 30, 2026 | | | December 31, 2025 | |
| (dollars in thousands) | | Amortized Cost | | | Estimated Fair Value | | | Amortized Cost | | | Estimated Fair Value | |
| Available for Sale | | | | | | | | | | | | | | | | |
| Mortgage-backed securities: | | | | | | | | | | | | | | | | |
| Due within one year | | $ | 4,245 | | | $ | 4,234 | | | $ | 4,602 | | | $ | 4,603 | |
| Due after one through five years | | | 27,192 | | | | 26,483 | | | | 6,912 | | | | 6,856 | |
| Due after five through ten years | | | 7,974 | | | | 7,882 | | | | 7,215 | | | | 7,012 | |
| Due after ten years | | | 118,768 | | | | 101,459 | | | | 119,017 | | | | 106,589 | |
| Total mortgage-backed securities | | | 158,179 | | | | 140,058 | | | | 137,746 | | | | 125,060 | |
| All other investment securities: | | | | | | | | | | | | | | | | |
| Due within one year | | | 10,986 | | | | 10,954 | | | | 1,000 | | | | 959 | |
| Due after one through five years | | | 15,561 | | | | 14,626 | | | | 24,082 | | | | 23,620 | |
| Due after five through ten years | | | 77,609 | | | | 69,897 | | | | 45,356 | | | | 41,453 | |
| Due after ten years | | | 85,990 | | | | 74,653 | | | | 87,665 | | | | 79,218 | |
| Total all other investment securities | | | 190,146 | | | | 170,130 | | | | 158,103 | | | | 145,250 | |
| Total investment securities | | $ | 348,325 | | | $ | 310,188 | | | $ | 295,849 | | | $ | 270,310 | |
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