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Note 2 - Securities (Tables) | 12 Months Ended
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Dec. 31, 2024
Notes Tables |
Debt Securities, Available-for-Sale [Table Text Block] |
|  | (Dollars in thousands) |
|  |  |  |  |  | Gross |  |  | Gross |  |  | Estimated |
|  | Cost |  |  | Unrealized |  |  | Unrealized |  |  | Fair |
|  | Basis |  |  | Gains |  |  | Losses |  |  | Value |
December 31, 2024 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
US government sponsored entities |  | $ | 8,884 |  |  | $ | - |  |  | $ | (823 | ) |  | $ | 8,061 |
Collateralized mortgage obligations and residential mortgage-backed securities |  |  | 135,974 |  |  |  | - |  |  |  | (26,649 | ) |  |  | 109,325 |
Municipal securities |  |  | 262,954 |  |  |  | - |  |  |  | (48,205 | ) |  |  | 214,749 |
Collateralized debt obligations |  |  | 2,156 |  |  |  | - |  |  |  | (737 | ) |  |  | 1,419 |
Total securities available-for-sale |  | $ | 409,968 |  |  | $ | - |  |  | $ | (76,414 | ) |  | $ | 333,554 |
|  | (Dollars in thousands) |
|  |  |  |  |  | Gross |  |  | Gross |  |  | Estimated |
|  | Cost |  |  | Unrealized |  |  | Unrealized |  |  | Fair |
|  | Basis |  |  | Gains |  |  | Losses |  |  | Value |
December 31, 2023 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
US government sponsored entities |  | $ | 8,884 |  |  | $ | - |  |  | $ | (1,001 | ) |  | $ | 7,883 |
Collateralized mortgage obligations and residential mortgage-backed securities |  |  | 149,410 |  |  |  | - |  |  |  | (25,946 | ) |  |  | 123,464 |
Municipal securities |  |  | 278,813 |  |  |  | 60 |  |  |  | (40,203 | ) |  |  | 238,670 |
Collateralized debt obligations |  |  | 2,170 |  |  |  | - |  |  |  | (813 | ) |  |  | 1,357 |
Total securities available-for-sale |  | $ | 439,277 |  |  | $ | 60 |  |  | $ | (67,963 | ) |  | $ | 371,374 |
Investments Classified by Contractual Maturity Date [Table Text Block] |
|  | (Dollars in thousands) |
|  | Available-for-sale |
|  |  |  |  |  | Estimated |
|  | Cost |  |  | Fair |
December 31, 2024 |  | Basis |  |  | Value |
Due in one year or less |  | $ | - |  |  | $ | - |
Due from one to five years |  |  | 11,953 |  |  |  | 10,801 |
Due from five to ten years |  |  | 32,560 |  |  |  | 28,835 |
Due over ten years |  |  | 229,481 |  |  |  | 184,593 |
Collateralized mortgage obligations and residential mortgage-backed securities |  |  | 135,974 |  |  |  | 109,325 |
Total |  | $ | 409,968 |  |  | $ | 333,554 |
Schedule of Realized Gain (Loss) [Table Text Block] |
|  | (Dollars in thousands) |
|  | December 31, |  |  | December 31, |
|  | 2024 |  |  | 2023 |
Proceeds |  | $ | 14,697 |  |  | $ | 476 |
Gross gains |  |  | - |  |  |  | - |
Gross losses |  |  | (531 | ) |  |  | (48 | )
Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block] |
|  | (Dollars in thousands) |
|  | Unrealized loss |
Ending balance, December 31, 2023 |  | $ | (51,613 | )
Current period change |  |  | (6,471 | )
Ending balance, December 31, 2024 |  | $ | (58,084 | )
|  | (Dollars in thousands) |
|  | Unrealized gain (loss) |
Ending balance, December 31, 2022 |  | $ | (64,300 | )
Period change |  |  | 12,687 |
Ending balance, December 31, 2023 |  | $ | (51,613 | )
Unrealized Gain (Loss) on Investments [Table Text Block] |
|  | (Dollars in thousands) |  |  |  |  |
|  | Less than 12 months |  |  | 12 months or longer |  |  | Total |  |  |  |  |
|  | Estimated |  |  |  |  |  |  | Estimated |  |  |  |  |  |  | Estimated |  |  |  |  |  |  | Percentage of |
|  | Fair |  |  | Unrealized |  |  | Fair |  |  | Unrealized |  |  | Fair |  |  | Unrealized |  |  | Total Portfolio |
|  | Value |  |  | Losses |  |  | Value |  |  | Losses |  |  | Value |  |  | Losses |  |  | in Loss Position |
December 31, 2024 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
US government sponsored entities |  | $ | - |  |  | $ | - |  |  | $ | 8,061 |  |  | $ | (823 | ) |  | $ | 8,061 |  |  | $ | (823 | ) |  |  | 100.0 | %
Collateralized mortgage obligations and residential mortgage-backed securities |  |  | - |  |  |  | - |  |  |  | 109,325 |  |  |  | (26,649 | ) |  |  | 109,325 |  |  |  | (26,649 | ) |  |  | 100.0 |
Municipal securities |  |  | 3,310 |  |  |  | (156 | ) |  |  | 211,439 |  |  |  | (48,049 | ) |  |  | 214,749 |  |  |  | (48,205 | ) |  |  | 100.0 |
Collateralized debt obligations |  |  | - |  |  |  | - |  |  |  | 1,419 |  |  |  | (737 | ) |  |  | 1,419 |  |  |  | (737 | ) |  |  | 100.0 |
Total securities balance |  | $ | 3,310 |  |  | $ | (156 | ) |  | $ | 330,244 |  |  | $ | (76,258 | ) |  | $ | 333,554 |  |  | $ | (76,414 | ) |  |  | 100.0 | %
Number of securities |  |  |  |  |  |  | 4 |  |  |  |  |  |  |  | 409 |  |  |  |  |  |  |  | 413 |  |  |  |  |
|  | (Dollars in thousands) |  |  |  |  |
|  | Less than 12 months |  |  | 12 months or longer |  |  | Total |  |  |  |  |
|  | Estimated |  |  |  |  |  |  | Estimated |  |  |  |  |  |  | Estimated |  |  |  |  |  |  | Percentage of |
|  | Fair |  |  | Unrealized |  |  | Fair |  |  | Unrealized |  |  | Fair |  |  | Unrealized |  |  | Total Portfolio |
|  | Value |  |  | Losses |  |  | Value |  |  | Losses |  |  | Value |  |  | Losses |  |  | in Loss Position |
December 31, 2023 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
US government sponsored entities |  | $ | - |  |  | $ | - |  |  | $ | 7,883 |  |  | $ | (1,001 | ) |  | $ | 7,883 |  |  | $ | (1,001 | ) |  |  | 100.0 | %
Collateralized mortgage obligations and residential mortgage-backed securities |  |  | - |  |  |  | - |  |  |  | 123,464 |  |  |  | (25,946 | ) |  |  | 123,464 |  |  |  | (25,946 | ) |  |  | 100.0 |
Municipal securities |  |  | - |  |  |  | - |  |  |  | 229,595 |  |  |  | (40,203 | ) |  |  | 229,595 |  |  |  | (40,203 | ) |  |  | 96.2 |
Collateralized debt obligations |  |  | - |  |  |  | - |  |  |  | 1,357 |  |  |  | (813 | ) |  |  | 1,357 |  |  |  | (813 | ) |  |  | 100.0 |
Total securities balance |  | $ | - |  |  | $ | - |  |  | $ | 362,299 |  |  | $ | (67,963 | ) |  | $ | 362,299 |  |  | $ | (67,963 | ) |  |  | 97.6 | %
Number of securities |  |  |  |  |  |  | - |  |  |  |  |  |  |  | 434 |  |  |  |  |  |  |  | 434 |  |  |  |  |

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