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Note 3 - Investments (Tables) | 3 Months Ended
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Mar. 31, 2024
Notes Tables |
Investment [Table Text Block] |
|  | March 31, 2024 |
|  |  |  |  |  |  |  |  |  |  |  |  |  | Estimated |  |  |  |  |
|  | Amortized |  |  | Unrealized |  |  | Unrealized |  |  | Fair |  |  |  |  |
SECURITIES AVAILABLE-FOR-SALE |  | Cost |  |  | Gains |  |  | Losses |  |  | Values |  |  | ACL |
U.S. agency securities |  | $ | 21,151 |  |  | $ | 45 |  |  | $ | (3,298 | ) |  | $ | 17,898 |  |  | $ | — |
Corporate securities |  |  | 16,000 |  |  |  | 90 |  |  |  | (890 | ) |  |  | 15,200 |  |  |  | — |
Municipal bonds |  |  | 86,257 |  |  |  | 18 |  |  |  | (12,722 | ) |  |  | 73,553 |  |  |  | — |
Mortgage-backed securities |  |  | 131,594 |  |  |  | 172 |  |  |  | (11,964 | ) |  |  | 119,802 |  |  |  | — |
U.S. Small Business Administration securities |  |  | 54,957 |  |  |  | — |  |  |  | (1,767 | ) |  |  | 53,190 |  |  |  | — |
Total securities available-for-sale |  |  | 309,959 |  |  |  | 325 |  |  |  | (30,641 | ) |  |  | 279,643 |  |  |  | — |
SECURITIES HELD-TO-MATURITY |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Corporate securities |  |  | 8,500 |  |  |  | — |  |  |  | (715 | ) |  |  | 7,785 |  |  |  | 45 |
Total securities held-to-maturity |  |  | 8,500 |  |  |  | — |  |  |  | (715 | ) |  |  | 7,785 |  |  |  | 45 |
Total securities |  | $ | 318,459 |  |  | $ | 325 |  |  | $ | (31,356 | ) |  | $ | 287,428 |  |  | $ | 45 |
|  | December 31, 2023 |
|  |  |  |  |  |  |  |  |  |  |  |  |  | Estimated |  |  |  |  |
|  | Amortized |  |  | Unrealized |  |  | Unrealized |  |  | Fair |  |  |  |  |
SECURITIES AVAILABLE-FOR-SALE |  | Cost |  |  | Gains |  |  | Losses |  |  | Values |  |  | ACL |
U.S. agency securities |  | $ | 21,151 |  |  | $ | 46 |  |  | $ | (3,179 | ) |  | $ | 18,018 |  |  | $ | — |
Corporate securities |  |  | 13,000 |  |  |  | 613 |  |  |  | (741 | ) |  |  | 12,872 |  |  |  | — |
Municipal bonds |  |  | 138,803 |  |  |  | 42 |  |  |  | (19,398 | ) |  |  | 119,447 |  |  |  | — |
Mortgage-backed securities |  |  | 112,855 |  |  |  | 238 |  |  |  | (11,845 | ) |  |  | 101,248 |  |  |  | — |
U.S. Small Business Administration securities |  |  | 42,886 |  |  |  | — |  |  |  | (1,538 | ) |  |  | 41,348 |  |  |  | — |
Total securities available-for-sale |  |  | 328,695 |  |  |  | 939 |  |  |  | (36,701 | ) |  |  | 292,933 |  |  |  | — |
SECURITIES HELD-TO-MATURITY |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Corporate securities |  |  | 8,500 |  |  |  | — |  |  |  | (834 | ) |  |  | 7,666 |  |  |  | 45 |
Total securities held-to-maturity |  |  | 8,500 |  |  |  | — |  |  |  | (834 | ) |  |  | 7,666 |  |  |  | 45 |
Total securities |  | $ | 337,195 |  |  | $ | 939 |  |  | $ | (37,535 | ) |  | $ | 300,599 |  |  | $ | 45 |
Debt Securities, Held-to-Maturity, Allowance for Credit Loss [Table Text Block] |
SECURITIES HELD-TO-MATURITY |  | For the Three Months Ended March 31, |
Corporate Securities |  | 2024 |  |  | 2023 |
Beginning ACL balance |  | $ | 45 |  |  | $ | 31 |
Provision for (recapture of) credit losses |  |  | — |  |  |  | — |
Total ending ACL balance |  | $ | 45 |  |  | $ | 31 |
Debt Securities, Held-to-Maturity, Credit Quality Indicator [Table Text Block] |
|  | March 31, |  |  | December 31, |
Corporate securities |  | 2024 |  |  | 2023 |
BBB/BBB- |  | $ | 7,000 |  |  | $ | 7,000 |
BB+ |  |  | 1,500 |  |  |  | 1,500 |
Total |  | $ | 8,500 |  |  | $ | 8,500 |
Schedule of Financial Instruments Owned and Pledged as Collateral [Table Text Block] |
|  | March 31, 2024 |
Purpose or beneficiary |  | Carrying Value |  |  | Amortized Cost |  |  | Fair Value |
State and local government public deposits |  | $ | 34,703 |  |  | $ | 40,783 |  |  | $ | 34,703 |
Federal Reserve Bank - Bank Term Funding Program facility ("BTFP") |  |  | 76,161 |  |  |  | 89,834 |  |  |  | 76,161 |
Total pledged securities |  | $ | 110,864 |  |  | $ | 130,617 |  |  | $ | 110,864 |
Gain (Loss) on Securities [Table Text Block] |
|  | March 31, 2024 |
|  | Less than 12 Months |  |  | 12 Months or Longer |  |  | Total |
|  | Fair |  |  | Unrealized |  |  | Fair |  |  | Unrealized |  |  | Fair |  |  | Unrealized |
SECURITIES AVAILABLE-FOR-SALE |  | Value |  |  | Losses |  |  | Value |  |  | Losses |  |  | Value |  |  | Losses |
U.S. agency securities |  | $ | — |  |  | $ | — |  |  | $ | 15,853 |  |  | $ | (3,298 | ) |  | $ | 15,853 |  |  | $ | (3,298 | )
Corporate securities |  |  | 7,846 |  |  |  | (154 | ) |  |  | 4,263 |  |  |  | (736 | ) |  |  | 12,109 |  |  |  | (890 | )
Municipal bonds |  |  | 1,279 |  |  |  | (7 | ) |  |  | 71,256 |  |  |  | (12,715 | ) |  |  | 72,535 |  |  |  | (12,722 | )
Mortgage-backed securities |  |  | 25,189 |  |  |  | (63 | ) |  |  | 66,593 |  |  |  | (11,901 | ) |  |  | 91,782 |  |  |  | (11,964 | )
U.S. Small Business Administration securities |  |  | 45,560 |  |  |  | (592 | ) |  |  | 7,630 |  |  |  | (1,175 | ) |  |  | 53,190 |  |  |  | (1,767 | )
Total securities available-for-sale |  |  | 79,874 |  |  |  | (816 | ) |  |  | 165,595 |  |  |  | (29,825 | ) |  |  | 245,469 |  |  |  | (30,641 | )
SECURITIES HELD-TO-MATURITY |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Corporate securities |  |  | — |  |  |  | — |  |  |  | 7,785 |  |  |  | (715 | ) |  |  | 7,785 |  |  |  | (715 | )
Total securities held-to-maturity |  |  | — |  |  |  | — |  |  |  | 7,785 |  |  |  | (715 | ) |  |  | 7,785 |  |  |  | (715 | )
Total securities |  | $ | 79,874 |  |  | $ | (816 | ) |  | $ | 173,380 |  |  | $ | (30,540 | ) |  | $ | 253,254 |  |  | $ | (31,356 | )
|  | December 31, 2023 |
|  | Less than 12 Months |  |  | 12 Months or Longer |  |  | Total |
|  | Fair |  |  | Unrealized |  |  | Fair |  |  | Unrealized |  |  | Fair |  |  | Unrealized |
SECURITIES AVAILABLE-FOR-SALE |  | Value |  |  | Losses |  |  | Value |  |  | Losses |  |  | Value |  |  | Losses |
U.S. agency securities |  | $ | — |  |  | $ | — |  |  | $ | 15,972 |  |  | $ | (3,179 | ) |  | $ | 15,972 |  |  | $ | (3,179 | )
Corporate securities |  |  | 959 |  |  |  | (41 | ) |  |  | 4,300 |  |  |  | (700 | ) |  |  | 5,259 |  |  |  | (741 | )
Municipal bonds |  |  | 3,922 |  |  |  | (23 | ) |  |  | 113,577 |  |  |  | (19,375 | ) |  |  | 117,499 |  |  |  | (19,398 | )
Mortgage-backed securities |  |  | 20,662 |  |  |  | (113 | ) |  |  | 67,376 |  |  |  | (11,732 | ) |  |  | 88,038 |  |  |  | (11,845 | )
U.S. Small Business Administration securities |  |  | 33,211 |  |  |  | (460 | ) |  |  | 8,137 |  |  |  | (1,078 | ) |  |  | 41,348 |  |  |  | (1,538 | )
Total securities available-for-sale |  |  | 58,754 |  |  |  | (637 | ) |  |  | 209,362 |  |  |  | (36,064 | ) |  |  | 268,116 |  |  |  | (36,701 | )
SECURITIES HELD-TO-MATURITY |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Corporate securities |  |  | — |  |  |  | — |  |  |  | 7,666 |  |  |  | (834 | ) |  |  | 7,666 |  |  |  | (834 | )
Total securities held-to-maturity |  |  | — |  |  |  | — |  |  |  | 7,666 |  |  |  | (834 | ) |  |  | 7,666 |  |  |  | (834 | )
Total securities |  | $ | 58,754 |  |  | $ | (637 | ) |  | $ | 217,028 |  |  | $ | (36,898 | ) |  | $ | 275,782 |  |  | $ | (37,535 | )
Investments Classified by Contractual Maturity Date [Table Text Block] |
|  | March 31, |  |  | December 31, |
|  | 2024 |  |  | 2023 |
SECURITIES AVAILABLE-FOR-SALE |  | Amortized |  |  | Fair |  |  | Amortized |  |  | Fair |
U.S. agency securities |  | Cost |  |  | Value |  |  | Cost |  |  | Value |
Due within one year |  | $ | 917 |  |  | $ | 914 |  |  | $ | 922 |  |  | $ | 914 |
Due after one year through five years |  |  | 3,951 |  |  |  | 3,537 |  |  |  | 3,947 |  |  |  | 3,544 |
Due after five years through ten years |  |  | 11,973 |  |  |  | 10,067 |  |  |  | 11,972 |  |  |  | 10,139 |
Due after ten years |  |  | 4,310 |  |  |  | 3,380 |  |  |  | 4,310 |  |  |  | 3,421 |
Subtotal |  |  | 21,151 |  |  |  | 17,898 |  |  |  | 21,151 |  |  |  | 18,018 |
Corporate securities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Due within one year |  |  | — |  |  |  | — |  |  |  | 1,000 |  |  |  | 1,004 |
Due after one year through five years |  |  | 10,000 |  |  |  | 9,985 |  |  |  | 6,000 |  |  |  | 6,609 |
Due after five years through ten years |  |  | 4,000 |  |  |  | 3,822 |  |  |  | 4,000 |  |  |  | 3,839 |
Due after ten years |  |  | 2,000 |  |  |  | 1,393 |  |  |  | 2,000 |  |  |  | 1,420 |
Subtotal |  |  | 16,000 |  |  |  | 15,200 |  |  |  | 13,000 |  |  |  | 12,872 |
Municipal bonds |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Due within one year |  |  | 1,006 |  |  |  | 1,000 |  |  |  | 1,013 |  |  |  | 1,003 |
Due after one year through five years |  |  | 82 |  |  |  | 81 |  |  |  | 757 |  |  |  | 751 |
Due after five years through ten years |  |  | 4,037 |  |  |  | 3,836 |  |  |  | 7,603 |  |  |  | 7,101 |
Due after ten years |  |  | 81,132 |  |  |  | 68,636 |  |  |  | 129,430 |  |  |  | 110,592 |
Subtotal |  |  | 86,257 |  |  |  | 73,553 |  |  |  | 138,803 |  |  |  | 119,447 |
Mortgage-backed securities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Federal National Mortgage Association (“FNMA”) |  |  | 83,863 |  |  |  | 73,301 |  |  |  | 76,369 |  |  |  | 66,275 |
Federal Home Loan Mortgage Corporation (“FHLMC”) |  |  | 36,178 |  |  |  | 35,532 |  |  |  | 32,311 |  |  |  | 31,376 |
Government National Mortgage Association (“GNMA”) |  |  | 11,553 |  |  |  | 10,969 |  |  |  | 4,175 |  |  |  | 3,597 |
Subtotal |  |  | 131,594 |  |  |  | 119,802 |  |  |  | 112,855 |  |  |  | 101,248 |
U.S. Small Business Administration securities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Due within one year |  |  | 42 |  |  |  | 41 |  |  |  | 198 |  |  |  | 196 |
Due after one year through five years |  |  | 1,656 |  |  |  | 1,584 |  |  |  | 1,860 |  |  |  | 1,824 |
Due after five years through ten years |  |  | 27,916 |  |  |  | 27,317 |  |  |  | 21,420 |  |  |  | 20,929 |
Due after ten years |  |  | 25,343 |  |  |  | 24,248 |  |  |  | 19,408 |  |  |  | 18,399 |
Subtotal |  |  | 54,957 |  |  |  | 53,190 |  |  |  | 42,886 |  |  |  | 41,348 |
Total securities available-for-sale |  |  | 309,959 |  |  |  | 279,643 |  |  |  | 328,695 |  |  |  | 292,933 |
SECURITIES HELD-TO-MATURITY |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Corporate securities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Due after five years through ten years |  |  | 8,500 |  |  |  | 7,785 |  |  |  | 8,500 |  |  |  | 7,666 |
Total securities held-to-maturity |  |  | 8,500 |  |  |  | 7,785 |  |  |  | 8,500 |  |  |  | 7,666 |
Total securities |  | $ | 318,459 |  |  | $ | 287,428 |  |  | $ | 337,195 |  |  | $ | 300,599 |
Schedule of Realized Gain (Loss) [Table Text Block] |
|  | March 31, 2024
|  |  |  | Gross |  | Gross
|  | Proceeds |  | Gains |  | (Losses)
Securities available-for-sale |  | $ | 44,036 |  | $ | — |  | $ | (7,998)

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