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Note 2 - Securities (Tables) | 9 Months Ended
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Sep. 30, 2024
Notes Tables |
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 |  | $ | 93,573 |  |  | $ | — |  |  | $ | (12,210 | ) |  | $ | 81,363 |  |  | $ | — |
U.S. government agency issued asset-backed securities (ABS agency) |  |  | 13,312 |  |  |  | 16 |  |  |  | (32 | ) |  |  | 13,296 |  |  |  | — |
Corporate issued asset-backed securities (ABS corporate) |  |  | 16,364 |  |  |  | 48 |  |  |  | (21 | ) |  |  | 16,391 |  |  |  | — |
Corporate issued debt securities (Corporate debt) |  |  | 58,131 |  |  |  | — |  |  |  | (4,073 | ) |  |  | 54,058 |  |  |  | — |
U.S. Small Business Administration securities (SBA) |  |  | 9,268 |  |  |  | 56 |  |  |  | (7 | ) |  |  | 9,317 |  |  |  | — |
Mortgage-backed securities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
U.S. government agency issued mortgage-backed securities (MBS agency) |  |  | 88,822 |  |  |  | 167 |  |  |  | (10,440 | ) |  |  | 78,549 |  |  |  | — |
Non-agency issued mortgage-backed securities (MBS non-agency) |  |  | 61,541 |  |  |  | — |  |  |  | (3,655 | ) |  |  | 57,886 |  |  |  | — |
Total securities available for sale |  | $ | 341,011 |  |  | $ | 287 |  |  | $ | (30,438 | ) |  | $ | 310,860 |  |  | $ | — |
|  | Amortized Cost |  |  | Gross Unrealized Gains |  |  | Gross Unrealized Losses |  |  | Estimated Fair Value |  |  | Allowance for Credit Losses |
|  | (In thousands) |
Available for Sale |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Municipal bonds |  | $ | 102,998 |  |  | $ | — |  |  | $ | (15,237 | ) |  | $ | 87,761 |  |  | $ | — |
ABS agency |  |  | 11,847 |  |  |  | — |  |  |  | (65 | ) |  |  | 11,782 |  |  |  | — |
ABS corporate |  |  | 5,370 |  |  |  | — |  |  |  | (84 | ) |  |  | 5,286 |  |  |  | — |
Corporate debt |  |  | 56,515 |  |  |  | — |  |  |  | (5,061 | ) |  |  | 51,454 |  |  |  | — |
Mortgage-backed securities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
MBS agency |  |  | 75,665 |  |  |  | — |  |  |  | (12,418 | ) |  |  | 63,247 |  |  |  | — |
MBS non-agency |  |  | 81,555 |  |  |  | — |  |  |  | (5,462 | ) |  |  | 76,093 |  |  |  | — |
Total securities available for sale |  | $ | 333,950 |  |  | $ | — |  |  | $ | (38,327 | ) |  | $ | 295,623 |  |  | $ | — |
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 |  | $ | — |  |  | $ | — |  |  | $ | (12,210 | ) |  | $ | 81,363 |  |  | $ | (12,210 | ) |  | $ | 81,363 |
ABS agency |  |  | (32 | ) |  |  | 9,520 |  |  |  | — |  |  |  | — |  |  |  | (32 | ) |  |  | 9,520 |
ABS corporate |  |  | (21 | ) |  |  | 4,815 |  |  |  | — |  |  |  | — |  |  |  | (21 | ) |  |  | 4,815 |
Corporate debt |  |  | (50 | ) |  |  | 1,640 |  |  |  | (4,023 | ) |  |  | 52,418 |  |  |  | (4,073 | ) |  |  | 54,058 |
SBA |  |  | (7 | ) |  |  | 983 |  |  |  | — |  |  |  | — |  |  |  | (7 | ) |  |  | 983 |
Mortgage-backed securities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
MBS agency |  |  | (119 | ) |  |  | 7,242 |  |  |  | (10,321 | ) |  |  | 51,487 |  |  |  | (10,440 | ) |  |  | 58,729 |
MBS non-agency |  |  | — |  |  |  | — |  |  |  | (3,655 | ) |  |  | 56,845 |  |  |  | (3,655 | ) |  |  | 56,845 |
Total available-for-sale in a loss position |  | $ | (229 | ) |  | $ | 24,200 |  |  | $ | (30,209 | ) |  | $ | 242,113 |  |  | $ | (30,438 | ) |  | $ | 266,313 |
|  | 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 |  | $ | — |  |  | $ | — |  |  | $ | (15,237 | ) |  | $ | 87,461 |  |  | $ | (15,237 | ) |  | $ | 87,461 |
ABS agency |  |  | (65 | ) |  |  | 11,782 |  |  |  | — |  |  |  | — |  |  |  | (65 | ) |  |  | 11,782 |
ABS corporate |  |  | (84 | ) |  |  | 3,771 |  |  |  | — |  |  |  | — |  |  |  | (84 | ) |  |  | 3,771 |
Corporate debt |  |  | — |  |  |  | — |  |  |  | (5,061 | ) |  |  | 51,454 |  |  |  | (5,061 | ) |  |  | 51,454 |
Mortgage-backed securities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
MBS agency |  |  | (27 | ) |  |  | 3,941 |  |  |  | (12,391 | ) |  |  | 59,305 |  |  |  | (12,418 | ) |  |  | 63,246 |
MBS non-agency |  |  | — |  |  |  | — |  |  |  | (5,462 | ) |  |  | 76,086 |  |  |  | (5,462 | ) |  |  | 76,086 |
Total available-for-sale in a loss position |  | $ | (176 | ) |  | $ | 19,494 |  |  | $ | (38,151 | ) |  | $ | 274,306 |  |  | $ | (38,327 | ) |  | $ | 293,800 |
Investments Classified by Contractual Maturity Date [Table Text Block] |
|  | September 30, 2024 |
|  | Available-for-Sale |
|  | Amortized Cost |  |  | Estimated Fair Value |
|  | (In thousands) |
Mortgage-backed securities: |  |  |  |  |  |  |  |
Due within one year |  | $ | 19,249 |  |  | $ | 19,091 |
Due after one through five years |  |  | 4,264 |  |  |  | 4,226 |
Due after five through ten years |  |  | 8,141 |  |  |  | 7,782 |
Due after ten years |  |  | 118,709 |  |  |  | 105,336 |
Total mortgage-backed securities |  |  | 150,363 |  |  |  | 136,435 |
All other investment securities: |  |  |  |  |  |  |  |
Due within one year |  |  | 1,000 |  |  |  | 815 |
Due after one through five years |  |  | 20,574 |  |  |  | 19,857 |
Due after five through ten years |  |  | 53,073 |  |  |  | 48,893 |
Due after ten years |  |  | 116,001 |  |  |  | 104,860 |
Total all other investment securities |  |  | 190,648 |  |  |  | 174,425 |
Total investment securities |  | $ | 341,011 |  |  | $ | 310,860 |
|  | December 31, 2023 |
|  | Available-for-Sale |
|  | Amortized Cost |  |  | Estimated Fair Value |
|  | (In thousands) |
Mortgage-backed securities: |  |  |  |  |  |  |  |
Due within one year |  | $ | 25,279 |  |  | $ | 25,017 |
Due after one through five years |  |  | 16,622 |  |  |  | 16,029 |
Due after five through ten years |  |  | 8,874 |  |  |  | 8,197 |
Due after ten years |  |  | 106,445 |  |  |  | 90,097 |
Total mortgage-backed securities |  |  | 157,220 |  |  |  | 139,340 |
All other investment securities: |  |  |  |  |  |  |  |
Due within one year |  |  | 300 |  |  |  | 300 |
Due after one through five years |  |  | 18,187 |  |  |  | 17,384 |
Due after five through ten years |  |  | 57,328 |  |  |  | 50,768 |
Due after ten years |  |  | 100,915 |  |  |  | 87,831 |
Total all other investment securities |  |  | 176,730 |  |  |  | 156,283 |
Total investment securities |  | $ | 333,950 |  |  | $ | 295,623 |
Schedule of Realized Gain (Loss) [Table Text Block] |
|  | Three Months Ended September 30, |  |  | Nine Months Ended September 30, |
|  | 2024 |  |  | 2023 |  |  | 2024 |  |  | 2023 |
|  | (In thousands) |
Proceeds from sales |  | $ | — |  |  | $ | — |  |  | $ | 21,048 |  |  | $ | — |
Gross realized gains |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
Gross realized losses |  |  | — |  |  |  | — |  |  |  | (2,117 | ) |  |  | — |

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