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Note 3 - Investments (Tables) | 12 Months Ended
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Dec. 31, 2024
Notes Tables |
Investment [Table Text Block] |
|  | December 31, 2024 |
|  |  |  |  |  |  |  |  |  |  |  |  |  | Estimated |  |  |  |  |
|  | Amortized |  |  | Unrealized |  |  | Unrealized |  |  | Fair |  |  |  |  |
SECURITIES AVAILABLE-FOR-SALE |  | Cost |  |  | Gains |  |  | Losses |  |  | Values |  |  | ACL |
U.S. agency securities |  | $ | 20,247 |  |  | $ | 45 |  |  | $ | (3,154 | ) |  | $ | 17,138 |  |  | $ | — |
Corporate securities |  |  | 16,000 |  |  |  | 8 |  |  |  | (882 | ) |  |  | 15,126 |  |  |  | — |
Municipal bonds |  |  | 82,774 |  |  |  | — |  |  |  | (12,430 | ) |  |  | 70,344 |  |  |  | — |
Mortgage-backed securities |  |  | 178,740 |  |  |  | 415 |  |  |  | (11,969 | ) |  |  | 167,186 |  |  |  | — |
Asset-backed securities |  |  | 12,511 |  |  |  | 3 |  |  |  | (1,133 | ) |  |  | 11,381 |  |  |  | — |
Total securities available-for-sale |  |  | 310,272 |  |  |  | 471 |  |  |  | (29,568 | ) |  |  | 281,175 |  |  |  | — |
SECURITIES HELD-TO-MATURITY |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Corporate securities |  |  | 8,500 |  |  |  | — |  |  |  | (356 | ) |  |  | 8,144 |  |  |  | 45 |
Total securities held-to-maturity |  |  | 8,500 |  |  |  | — |  |  |  | (356 | ) |  |  | 8,144 |  |  |  | 45 |
Total securities |  | $ | 318,772 |  |  | $ | 471 |  |  | $ | (29,924 | ) |  | $ | 289,319 |  |  | $ | 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 |  |  |  | — |
Asset-backed 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 Year Ended December 31, |
Corporate Securities |  | 2024 |  |  | 2023 |  |  | 2022 |
Beginning ACL balance |  | $ | 45 |  |  | $ | 31 |  |  | $ | — |
Impact of adopting ASU 2016-13 |  |  | — |  |  |  | — |  |  |  | 72 |
Provision for (recapture of) credit losses |  |  | — |  |  |  | 14 |  |  |  | (41 | )
Total ending ACL balance |  | $ | 45 |  |  | $ | 45 |  |  | $ | 31 |
Debt Securities, Held-to-Maturity, Credit Quality Indicator [Table Text Block] |
|  | December 31, |
Corporate securities |  | 2024 |  |  | 2023 |
BBB/BBB- |  | $ | 8,500 |  |  | $ | 7,000 |
BB+ |  |  | — |  |  |  | 1,500 |
Total |  | $ | 8,500 |  |  | $ | 8,500 |
Schedule of Financial Instruments Owned and Pledged as Collateral [Table Text Block] |
|  | December 31, 2024 |
Purpose or beneficiary |  | Carrying Value |  |  | Amortized Cost |  |  | Fair Value |
State and local government public deposits |  | $ | 34,384 |  |  | $ | 40,343 |  |  | $ | 34,384 |
Gain (Loss) on Securities [Table Text Block] |
|  | December 31, 2024 |
|  | Less than 12 Months |  |  | 12 Months or Longer |  |  | Total |
SECURITIES AVAILABLE-FOR-SALE |  | Fair Value |  |  | Unrealized Losses |  |  | Fair Value |  |  | Unrealized Losses |  |  | Fair Value |  |  | Unrealized Losses |
U.S. agency securities |  | $ | — |  |  | $ | — |  |  | $ | 15,093 |  |  | $ | (3,154 | ) |  | $ | 15,093 |  |  | $ | (3,154 | )
Corporate securities |  |  | 6,781 |  |  |  | (219 | ) |  |  | 5,337 |  |  |  | (663 | ) |  |  | 12,118 |  |  |  | (882 | )
Municipal bonds |  |  | 1,677 |  |  |  | (10 | ) |  |  | 68,667 |  |  |  | (12,420 | ) |  |  | 70,344 |  |  |  | (12,430 | )
Mortgage-backed securities |  |  | 31,093 |  |  |  | (241 | ) |  |  | 63,934 |  |  |  | (11,728 | ) |  |  | 95,027 |  |  |  | (11,969 | )
Asset-backed securities |  |  | 3,638 |  |  |  | (41 | ) |  |  | 7,190 |  |  |  | (1,092 | ) |  |  | 10,828 |  |  |  | (1,133 | )
Total securities available-for-sale |  |  | 43,189 |  |  |  | (511 | ) |  |  | 160,221 |  |  |  | (29,057 | ) |  |  | 203,410 |  |  |  | (29,568 | )
SECURITIES HELD-TO-MATURITY |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Corporate securities |  |  | — |  |  |  | — |  |  |  | 8,144 |  |  |  | (356 | ) |  |  | 8,144 |  |  |  | (356 | )
Total securities held-to-maturity |  |  | — |  |  |  | — |  |  |  | 8,144 |  |  |  | (356 | ) |  |  | 8,144 |  |  |  | (356 | )
Total securities |  | $ | 43,189 |  |  | $ | (511 | ) |  | $ | 168,365 |  |  | $ | (29,413 | ) |  | $ | 211,554 |  |  | $ | (29,924 | )
|  | December 31, 2023 |
|  | Less than 12 Months |  |  | 12 Months or Longer |  |  | Total |
SECURITIES AVAILABLE-FOR-SALE |  | Fair Value |  |  | Unrealized Losses |  |  | Fair Value |  |  | Unrealized Losses |  |  | Fair Value |  |  | Unrealized 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 | )
Asset-backed 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] |
|  | December 31, 2024 |  |  | December 31, 2023 |
SECURITIES AVAILABLE-FOR-SALE |  | Amortized |  |  | Fair |  |  | Amortized |  |  | Fair |
U.S. agency securities |  | Cost |  |  | Value |  |  | Cost |  |  | Value |
Due within one year |  | $ | — |  |  | $ | — |  |  | $ | 922 |  |  | $ | 914 |
Due after one year through five years |  |  | 4,962 |  |  |  | 4,575 |  |  |  | 3,947 |  |  |  | 3,544 |
Due after five years through ten years |  |  | 10,975 |  |  |  | 9,193 |  |  |  | 11,972 |  |  |  | 10,139 |
Due after ten years |  |  | 4,310 |  |  |  | 3,370 |  |  |  | 4,310 |  |  |  | 3,421 |
Subtotal |  |  | 20,247 |  |  |  | 17,138 |  |  |  | 21,151 |  |  |  | 18,018 |
Corporate securities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Due within one year |  |  | — |  |  |  | — |  |  |  | 1,000 |  |  |  | 1,004 |
Due after one year through five years |  |  | 11,000 |  |  |  | 10,766 |  |  |  | 6,000 |  |  |  | 6,609 |
Due after five years through ten years |  |  | 3,000 |  |  |  | 2,918 |  |  |  | 4,000 |  |  |  | 3,839 |
Due after ten years |  |  | 2,000 |  |  |  | 1,442 |  |  |  | 2,000 |  |  |  | 1,420 |
Subtotal |  |  | 16,000 |  |  |  | 15,126 |  |  |  | 13,000 |  |  |  | 12,872 |
Municipal bonds |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Due within one year |  |  | — |  |  |  | — |  |  |  | 1,013 |  |  |  | 1,003 |
Due after one year through five years |  |  | 2,186 |  |  |  | 2,168 |  |  |  | 757 |  |  |  | 751 |
Due after five years through ten years |  |  | 4,158 |  |  |  | 3,728 |  |  |  | 7,603 |  |  |  | 7,101 |
Due after ten years |  |  | 76,430 |  |  |  | 64,448 |  |  |  | 129,430 |  |  |  | 110,592 |
Subtotal |  |  | 82,774 |  |  |  | 70,344 |  |  |  | 138,803 |  |  |  | 119,447 |
Mortgage-backed securities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Federal National Mortgage Association (“FNMA”) |  |  | 90,771 |  |  |  | 80,677 |  |  |  | 76,369 |  |  |  | 66,275 |
Federal Home Loan Mortgage Corporation (“FHLMC”) |  |  | 48,765 |  |  |  | 47,773 |  |  |  | 32,311 |  |  |  | 31,376 |
Government National Mortgage Association (“GNMA”) |  |  | 39,204 |  |  |  | 38,736 |  |  |  | 4,175 |  |  |  | 3,597 |
Subtotal |  |  | 178,740 |  |  |  | 167,186 |  |  |  | 112,855 |  |  |  | 101,248 |
Asset-backed securities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Due within one year |  |  | 203 |  |  |  | 200 |  |  |  | 198 |  |  |  | 196 |
Due after one year through five years |  |  | 1,073 |  |  |  | 1,037 |  |  |  | 1,860 |  |  |  | 1,824 |
Due after five years through ten years |  |  | 2,867 |  |  |  | 2,648 |  |  |  | 21,420 |  |  |  | 20,929 |
Due after ten years |  |  | 8,368 |  |  |  | 7,496 |  |  |  | 19,408 |  |  |  | 18,399 |
Subtotal |  |  | 12,511 |  |  |  | 11,381 |  |  |  | 42,886 |  |  |  | 41,348 |
Total securities available-for-sale |  |  | 310,272 |  |  |  | 281,175 |  |  |  | 328,695 |  |  |  | 292,933 |
SECURITIES HELD-TO-MATURITY |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Corporate securities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Due after five years through ten years |  |  | 8,500 |  |  |  | 8,144 |  |  |  | 8,500 |  |  |  | 7,666 |
Total securities held-to-maturity |  |  | 8,500 |  |  |  | 8,144 |  |  |  | 8,500 |  |  |  | 7,666 |
Total securities |  | $ | 318,772 |  |  | $ | 289,319 |  |  | $ | 337,195 |  |  | $ | 300,599 |
Schedule of Realized Gain (Loss) [Table Text Block] |
|  | For the Year Ended |
|  | December 31, 2024 |
|  |  |  |  |  | Gross |  |  | Gross |
|  | Proceeds |  |  | Gains |  |  | (Losses) |
Securities available-for-sale |  | $ | 101,907 |  |  | $ | 215 |  |  | $ | (8,051 | )

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