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Note 3 - Investment Securities (Tables) | 9 Months Ended
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Sep. 30, 2024
Notes Tables |
Marketable Securities [Table Text Block] |
|  |  |  |  |  | Gross |  |  | Gross |  |  |  |  |
|  | Amortized |  |  | Unrealized |  |  | Unrealized |  |  | Fair |
(In thousands) |  | Cost |  |  | Gains |  |  | Losses |  |  | Value |
September 30, 2024 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Securities available for sale: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Agency mortgage-backed securities |  | $ | 72,785 |  |  | $ | 42 |  |  | $ | 6,315 |  |  | $ | 66,512 |
Agency CMO |  |  | 52,335 |  |  |  | 199 |  |  |  | 222 |  |  |  | 52,312 |
Other debt securities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Agency notes and bonds |  |  | 126,601 |  |  |  | 135 |  |  |  | 4,901 |  |  |  | 121,835 |
Treasury notes and bonds |  |  | 34,781 |  |  |  | - |  |  |  | 398 |  |  |  | 34,383 |
Municipal obligations |  |  | 145,903 |  |  |  | 598 |  |  |  | 13,074 |  |  |  | 133,427 |
Total securities available for sale |  | $ | 432,405 |  |  | $ | 974 |  |  | $ | 24,910 |  |  | $ | 408,469 |
Securities held to maturity: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Other debt securities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Corporate notes |  | $ | 7,000 |  |  | $ | - |  |  | $ | 2,312 |  |  | $ | 4,688 |
Total securities held to maturity |  | $ | 7,000 |  |  | $ | - |  |  | $ | 2,312 |  |  | $ | 4,688 |
December 31, 2023 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Securities available for sale: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Agency mortgage-backed securities |  | $ | 81,166 |  |  | $ | - |  |  | $ | 9,122 |  |  | $ | 72,044 |
Agency CMO |  |  | 25,402 |  |  |  | 94 |  |  |  | 323 |  |  |  | 25,173 |
Other debt securities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Agency notes and bonds |  |  | 138,174 |  |  |  | 38 |  |  |  | 8,707 |  |  |  | 129,505 |
Treasury notes and bonds |  |  | 64,758 |  |  |  | - |  |  |  | 1,674 |  |  |  | 63,084 |
Municipal obligations |  |  | 159,049 |  |  |  | 655 |  |  |  | 12,239 |  |  |  | 147,465 |
Total securities available for sale |  | $ | 468,549 |  |  | $ | 787 |  |  | $ | 32,065 |  |  | $ | 437,271 |
Securities held to maturity: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Other debt securities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Corporate notes |  | $ | 7,000 |  |  | $ | - |  |  | $ | 2,554 |  |  | $ | 4,446 |
Total securities held to maturity |  | $ | 7,000 |  |  | $ | - |  |  | $ | 2,554 |  |  | $ | 4,446 |
Investments Classified by Contractual Maturity Date [Table Text Block] |
|  | Securities Available for Sale |  |  | Securities Held to Maturity |
|  | Amortized |  |  | Fair |  |  | Amortized |  |  | Fair |
|  | Cost |  |  | Value |  |  | Cost |  |  | Value |
(In thousands) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Due in one year or less |  | $ | 60,809 |  |  | $ | 59,782 |  |  | $ | - |  |  | $ | - |
Due after one year through five years |  |  | 123,645 |  |  |  | 118,416 |  |  |  | - |  |  |  | - |
Due after five years through ten years |  |  | 52,663 |  |  |  | 49,010 |  |  |  | 2,000 |  |  |  | 1,354 |
Due after ten years |  |  | 70,168 |  |  |  | 62,437 |  |  |  | 5,000 |  |  |  | 3,334 |
|  |  | 307,285 |  |  |  | 289,645 |  |  |  | 7,000 |  |  |  | 4,688 |
Mortgage-backed securities and CMO |  |  | 125,120 |  |  |  | 118,824 |  |  |  | - |  |  |  | - |
|  | $ | 432,405 |  |  | $ | 408,469 |  |  | $ | 7,000 |  |  | $ | 4,688 |
Unrealized Gain (Loss) on Investments [Table Text Block] |
|  | Number of |  |  |  |  |  |  | Gross |
|  | Investment |  |  | Fair |  |  | Unrealized |
|  | Positions |  |  | Value |  |  | Losses |
(Dollars in thousands) |  |  |  |  |  |  |  |  |  |  |  |
September 30, 2024: |  |  |  |  |  |  |  |  |  |  |  |
Securities available for sale: |  |  |  |  |  |  |  |  |  |  |  |
Continuous loss position less than twelve months: |  |  |  |  |  |  |  |  |  |  |  |
Agency CMO |  |  | 3 |  |  | $ | 11,844 |  |  | $ | 38 |
Muncipal obligations |  |  | 13 |  |  |  | 6,970 |  |  |  | 153 |
Total less than twelve months |  |  | 16 |  |  |  | 18,814 |  |  |  | 191 |
Continuous loss position more than twelve months: |  |  |  |  |  |  |  |  |  |  |  |
Agency mortgage-backed securities |  |  | 94 |  |  |  | 65,069 |  |  |  | 6,315 |
Agency CMO |  |  | 22 |  |  |  | 8,315 |  |  |  | 184 |
Agency notes and bonds |  |  | 47 |  |  |  | 115,349 |  |  |  | 4,901 |
Treasury notes and bonds |  |  | 13 |  |  |  | 34,383 |  |  |  | 398 |
Muncipal obligations |  |  | 186 |  |  |  | 101,063 |  |  |  | 12,921 |
Total more than twelve months |  |  | 362 |  |  |  | 324,179 |  |  |  | 24,719 |
Total securities available for sale |  |  | 378 |  |  | $ | 342,993 |  |  | $ | 24,910 |
Securities held to maturity: |  |  |  |  |  |  |  |  |  |  |  |
Continuous loss position more than twelve months: |  |  |  |  |  |  |  |  |  |  |  |
Corporate notes |  |  | 4 |  |  | $ | 4,688 |  |  | $ | 2,312 |
Total more than twelve months |  |  | 4 |  |  |  | 4,688 |  |  |  | 2,312 |
Total securities held to maturity |  |  | 4 |  |  | $ | 4,688 |  |  | $ | 2,312 |
|  | Number of |  |  |  |  |  |  | Gross |
|  | Investment |  |  | Fair |  |  | Unrealized |
|  | Positions |  |  | Value |  |  | Losses |
(Dollars in thousands) |  |  |  |  |  |  |  |  |  |  |  |
December 31, 2023: |  |  |  |  |  |  |  |  |  |  |  |
Securities available for sale: |  |  |  |  |  |  |  |  |  |  |  |
Continuous loss position less than twelve months: |  |  |  |  |  |  |  |  |  |  |  |
Agency CMO |  |  | 3 |  |  | $ | 8,019 |  |  | $ | 30 |
Agency notes and bonds |  |  | 3 |  |  |  | 2,754 |  |  |  | 12 |
Muncipal obligations |  |  | 74 |  |  |  | 32,124 |  |  |  | 2,405 |
Total less than twelve months |  |  | 80 |  |  |  | 42,897 |  |  |  | 2,447 |
Continuous loss position more than twelve months: |  |  |  |  |  |  |  |  |  |  |  |
Agency mortgage-backed securities |  |  | 96 |  |  |  | 72,044 |  |  |  | 9,122 |
Agency CMO |  |  | 22 |  |  |  | 4,998 |  |  |  | 293 |
Agency notes and bonds |  |  | 52 |  |  |  | 123,416 |  |  |  | 8,695 |
Treasury notes and bonds |  |  | 21 |  |  |  | 63,084 |  |  |  | 1,674 |
Muncipal obligations |  |  | 130 |  |  |  | 79,643 |  |  |  | 9,834 |
Total more than twelve months |  |  | 321 |  |  |  | 343,185 |  |  |  | 29,618 |
Total securities available for sale |  |  | 401 |  |  | $ | 386,082 |  |  | $ | 32,065 |
Securities held to maturity: |  |  |  |  |  |  |  |  |  |  |  |
Continuous loss position more than twelve months: |  |  |  |  |  |  |  |  |  |  |  |
Corporate notes |  |  | 4 |  |  | $ | 4,446 |  |  | $ | 2,554 |
Total more than twelve months |  |  | 4 |  |  |  | 4,446 |  |  |  | 2,554 |
Total securities held to maturity |  |  | 4 |  |  | $ | 4,446 |  |  | $ | 2,554 |

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