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Note 3 - Investment Securities (Tables) | 6 Months Ended
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Jun. 30, 2024
Notes Tables |
Marketable Securities [Table Text Block] |
|  |  |  |  |  | Gross |  |  | Gross |  |  |  |  |
|  | Amortized |  |  | Unrealized |  |  | Unrealized |  |  | Fair |
(In thousands) |  | Cost |  |  | Gains |  |  | Losses |  |  | Value |
June 30, 2024 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Securities available for sale: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Agency mortgage-backed securities |  | $ | 74,648 |  |  | $ | - |  |  | $ | 9,035 |  |  | $ | 65,613 |
Agency CMO |  |  | 48,313 |  |  |  | 56 |  |  |  | 561 |  |  |  | 47,808 |
Other debt securities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Agency notes and bonds |  |  | 135,335 |  |  |  | 8 |  |  |  | 7,821 |  |  |  | 127,522 |
Treasury notes and bonds |  |  | 45,769 |  |  |  | - |  |  |  | 978 |  |  |  | 44,791 |
Municipal obligations |  |  | 143,424 |  |  |  | 200 |  |  |  | 15,057 |  |  |  | 128,567 |
Total securities available for sale |  | $ | 447,489 |  |  | $ | 264 |  |  | $ | 33,452 |  |  | $ | 414,301 |
Securities held to maturity: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Other debt securities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Corporate notes |  | $ | 7,000 |  |  | $ | - |  |  | $ | 2,506 |  |  | $ | 4,494 |
Total securities held to maturity |  | $ | 7,000 |  |  | $ | - |  |  | $ | 2,506 |  |  | $ | 4,494 |
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 |  | $ | 61,814 |  |  | $ | 60,386 |  |  | $ | - |  |  | $ | - |
Due after one year through five years |  |  | 142,008 |  |  |  | 133,181 |  |  |  | - |  |  |  | - |
Due after five years through ten years |  |  | 47,965 |  |  |  | 44,223 |  |  |  | 2,000 |  |  |  | 1,299 |
Due after ten years |  |  | 72,741 |  |  |  | 63,090 |  |  |  | 5,000 |  |  |  | 3,195 |
|  |  | 324,528 |  |  |  | 300,880 |  |  |  | 7,000 |  |  |  | 4,494 |
Mortgage-backed securities and CMO |  |  | 122,961 |  |  |  | 113,421 |  |  |  | - |  |  |  | - |
|  | $ | 447,489 |  |  | $ | 414,301 |  |  | $ | 7,000 |  |  | $ | 4,494 |
Unrealized Gain (Loss) on Investments [Table Text Block] |
|  | Number of |  |  |  |  |  |  | Gross |
|  | Investment |  |  | Fair |  |  | Unrealized |
|  | Positions |  |  | Value |  |  | Losses |
(Dollars in thousands) |  |  |  |  |  |  |  |  |  |  |  |
June 30, 2024: |  |  |  |  |  |  |  |  |  |  |  |
Securities available for sale: |  |  |  |  |  |  |  |  |  |  |  |
Continuous loss position less than twelve months: |  |  |  |  |  |  |  |  |  |  |  |
Agency CMO |  |  | 12 |  |  | $ | 25,124 |  |  | $ | 180 |
Agency notes and bonds |  |  | 4 |  |  |  | 2,732 |  |  |  | 18 |
Muncipal obligations |  |  | 88 |  |  |  | 37,119 |  |  |  | 2,929 |
Total less than twelve months |  |  | 104 |  |  |  | 64,975 |  |  |  | 3,127 |
Continuous loss position more than twelve months: |  |  |  |  |  |  |  |  |  |  |  |
Agency mortgage-backed securities |  |  | 95 |  |  |  | 65,612 |  |  |  | 9,035 |
Agency CMO |  |  | 25 |  |  |  | 11,104 |  |  |  | 381 |
Agency notes and bonds |  |  | 53 |  |  |  | 122,709 |  |  |  | 7,803 |
Treasury notes and bonds |  |  | 16 |  |  |  | 44,791 |  |  |  | 978 |
Muncipal obligations |  |  | 129 |  |  |  | 76,205 |  |  |  | 12,128 |
Total more than twelve months |  |  | 318 |  |  |  | 320,421 |  |  |  | 30,325 |
Total securities available for sale |  |  | 422 |  |  | $ | 385,396 |  |  | $ | 33,452 |
Securities held to maturity: |  |  |  |  |  |  |  |  |  |  |  |
Continuous loss position more than twelve months: |  |  |  |  |  |  |  |  |  |  |  |
Corporate notes |  |  | 4 |  |  | $ | 4,494 |  |  | $ | 2,506 |
Total more than twelve months |  |  | 4 |  |  |  | 4,494 |  |  |  | 2,506 |
Total securities held to maturity |  |  | 4 |  |  | $ | 4,494 |  |  | $ | 2,506 |
|  | 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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