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Note 2 - Investments (Tables) | 9 Months Ended
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Sep. 30, 2025
Notes Tables |
Investment [Table Text Block] |
|  | September 30, 2025 |
|  |  |  |  |  |  |  |  |  |  |  |  |  | Estimated |  |  |  |  |
|  | Amortized |  |  | Unrealized |  |  | Unrealized |  |  | Fair |  |  |  |  |
SECURITIES AVAILABLE-FOR-SALE |  | Cost |  |  | Gains |  |  | Losses |  |  | Values |  |  | ACL |
U.S. agency securities |  | $ | 20,260 |  |  | $ | 31 |  |  | $ | (2,303 | ) |  | $ | 17,988 |  |  | $ | — |
Corporate securities |  |  | 16,000 |  |  |  | 7 |  |  |  | (556 | ) |  |  | 15,451 |  |  |  | — |
Municipal bonds |  |  | 81,925 |  |  |  | 5 |  |  |  | (11,225 | ) |  |  | 70,705 |  |  |  | — |
Mortgage-backed securities |  |  | 205,937 |  |  |  | 865 |  |  |  | (9,580 | ) |  |  | 197,222 |  |  |  | — |
Asset-backed securities |  |  | 11,030 |  |  |  | — |  |  |  | (701 | ) |  |  | 10,329 |  |  |  | — |
Total securities available-for-sale |  |  | 335,152 |  |  |  | 908 |  |  |  | (24,365 | ) |  |  | 311,695 |  |  |  | — |
SECURITIES HELD-TO-MATURITY |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Corporate securities |  |  | 29,336 |  |  |  | 404 |  |  |  | (82 | ) |  |  | 29,658 |  |  |  | 220 |
Municipal bonds |  |  | 2,270 |  |  |  | 214 |  |  |  | — |  |  |  | 2,484 |  |  |  | — |
Total securities held-to-maturity |  |  | 31,606 |  |  |  | 618 |  |  |  | (82 | ) |  |  | 32,142 |  |  |  | 220 |
Total securities |  | $ | 366,758 |  |  | $ | 1,526 |  |  | $ | (24,447 | ) |  | $ | 343,837 |  |  | $ | 220 |
|  | 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 |
Debt Securities, Held-to-Maturity, Allowance for Credit Loss [Table Text Block] |
SECURITIES HELD-TO-MATURITY |  | For the Three Months Ended September 30, |
Corporate Securities |  | 2025 |  |  | 2024 |
Beginning ACL balance |  | $ | 220 |  |  | $ | 45 |
Provision for credit losses |  |  | — |  |  |  | — |
Total ending ACL balance |  | $ | 220 |  |  | $ | 45 |
SECURITIES HELD-TO-MATURITY |  | For the Nine Months Ended September 30, |
Corporate Securities |  | 2025 |  |  | 2024 |
Beginning ACL balance |  | $ | 45 |  |  | $ | 45 |
Provision for credit losses |  |  | 175 |  |  |  | — |
Total ending ACL balance |  | $ | 220 |  |  | $ | 45 |
Debt Securities, Held-to-Maturity, Credit Quality Indicator [Table Text Block] |
|  | September 30, |  |  | December 31, |
Corporate securities |  | 2025 |  |  | 2024 |
BBB/BBB- |  | $ | 29,336 |  |  | $ | 8,500 |
Municipal bonds |  |  |  |  |  |  |  |
AA |  |  | 2,270 |  |  |  | — |
Total |  | $ | 31,606 |  |  | $ | 8,500 |
Schedule of Financial Instruments Owned and Pledged as Collateral [Table Text Block] |
|  | September 30, 2025 |
Purpose or beneficiary |  | Carrying Value |  |  | Amortized Cost |  |  | Fair Value |
State and local government public deposits |  | $ | 22,377 |  |  | $ | 25,939 |  |  | $ | 22,377 |
Gain (Loss) on Securities [Table Text Block] |
|  | September 30, 2025 |
|  | 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 |  | $ | — |  |  | $ | — |  |  | $ | 15,957 |  |  | $ | (2,303 | ) |  | $ | 15,957 |  |  | $ | (2,303 | )
Corporate securities |  |  | 5,997 |  |  |  | (3 | ) |  |  | 5,447 |  |  |  | (553 | ) |  |  | 11,444 |  |  |  | (556 | )
Municipal bonds |  |  | 487 |  |  |  | — |  |  |  | 69,387 |  |  |  | (11,225 | ) |  |  | 69,874 |  |  |  | (11,225 | )
Mortgage-backed securities |  |  | 50,987 |  |  |  | (508 | ) |  |  | 62,610 |  |  |  | (9,072 | ) |  |  | 113,597 |  |  |  | (9,580 | )
Asset-backed securities |  |  | 3,713 |  |  |  | (18 | ) |  |  | 6,616 |  |  |  | (683 | ) |  |  | 10,329 |  |  |  | (701 | )
Total securities available-for-sale |  |  | 61,184 |  |  |  | (529 | ) |  |  | 160,017 |  |  |  | (23,836 | ) |  |  | 221,201 |  |  |  | (24,365 | )
SECURITIES HELD-TO-MATURITY |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Corporate securities |  |  | 5,594 |  |  |  | (22 | ) |  |  | 940 |  |  |  | (60 | ) |  |  | 6,534 |  |  |  | (82 | )
Total securities held-to-maturity |  |  | 5,594 |  |  |  | (22 | ) |  |  | 940 |  |  |  | (60 | ) |  |  | 6,534 |  |  |  | (82 | )
Total securities |  | $ | 66,778 |  |  | $ | (551 | ) |  | $ | 160,957 |  |  | $ | (23,896 | ) |  | $ | 227,735 |  |  | $ | (24,447 | )
|  | 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 | )
Investments Classified by Contractual Maturity Date [Table Text Block] |
|  | September 30, 2025 |  |  | December 31, 2024 |
SECURITIES AVAILABLE-FOR-SALE |  | Amortized |  |  | Fair |  |  | Amortized |  |  | Fair |
U.S. agency securities |  | Cost |  |  | Value |  |  | Cost |  |  | Value |
Due after one year through five years |  | $ | 4,972 |  |  | $ | 4,762 |  |  | $ | 4,962 |  |  | $ | 4,575 |
Due after five years through ten years |  |  | 15,288 |  |  |  | 13,226 |  |  |  | 10,975 |  |  |  | 9,193 |
Due after ten years |  |  | — |  |  |  | — |  |  |  | 4,310 |  |  |  | 3,370 |
Subtotal |  |  | 20,260 |  |  |  | 17,988 |  |  |  | 20,247 |  |  |  | 17,138 |
Corporate securities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Due after one year through five years |  |  | 14,000 |  |  |  | 13,934 |  |  |  | 11,000 |  |  |  | 10,766 |
Due after five years through ten years |  |  | 2,000 |  |  |  | 1,517 |  |  |  | 3,000 |  |  |  | 2,918 |
Due after ten years |  |  | — |  |  |  | — |  |  |  | 2,000 |  |  |  | 1,442 |
Subtotal |  |  | 16,000 |  |  |  | 15,451 |  |  |  | 16,000 |  |  |  | 15,126 |
Municipal bonds |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Due after one year through five years |  |  | 2,147 |  |  |  | 2,150 |  |  |  | 2,186 |  |  |  | 2,168 |
Due after five years through ten years |  |  | 4,121 |  |  |  | 3,785 |  |  |  | 4,158 |  |  |  | 3,728 |
Due after ten years |  |  | 75,657 |  |  |  | 64,770 |  |  |  | 76,430 |  |  |  | 64,448 |
Subtotal |  |  | 81,925 |  |  |  | 70,705 |  |  |  | 82,774 |  |  |  | 70,344 |
Mortgage-backed securities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Federal National Mortgage Association (“FNMA”) |  |  | 86,824 |  |  |  | 79,479 |  |  |  | 90,771 |  |  |  | 80,677 |
Federal Home Loan Mortgage Corporation (“FHLMC”) |  |  | 46,537 |  |  |  | 45,823 |  |  |  | 48,765 |  |  |  | 47,773 |
Government National Mortgage Association (“GNMA”) |  |  | 72,576 |  |  |  | 71,920 |  |  |  | 39,204 |  |  |  | 38,736 |
Subtotal |  |  | 205,937 |  |  |  | 197,222 |  |  |  | 178,740 |  |  |  | 167,186 |
Asset-backed securities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Due within one year |  |  | 130 |  |  |  | 129 |  |  |  | 203 |  |  |  | 200 |
Due after one year through five years |  |  | 744 |  |  |  | 728 |  |  |  | 1,073 |  |  |  | 1,037 |
Due after five years through ten years |  |  | 2,599 |  |  |  | 2,446 |  |  |  | 2,867 |  |  |  | 2,648 |
Due after ten years |  |  | 7,557 |  |  |  | 7,026 |  |  |  | 8,368 |  |  |  | 7,496 |
Subtotal |  |  | 11,030 |  |  |  | 10,329 |  |  |  | 12,511 |  |  |  | 11,381 |
Total securities available-for-sale |  |  | 335,152 |  |  |  | 311,695 |  |  |  | 310,272 |  |  |  | 281,175 |
SECURITIES HELD-TO-MATURITY |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Corporate securities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Due after one year through five years |  |  | 3,500 |  |  |  | 3,488 |  |  |  | — |  |  |  | — |
Due after five years through ten years |  |  | 25,836 |  |  |  | 26,170 |  |  |  | 8,500 |  |  |  | 8,144 |
Subtotal |  |  | 29,336 |  |  |  | 29,658 |  |  |  | 8,500 |  |  |  | 8,144 |
Municipal bonds |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Due after five years through ten years |  |  | 2,270 |  |  |  | 2,484 |  |  |  | — |  |  |  | — |
Subtotal |  |  | 2,270 |  |  |  | 2,484 |  |  |  | — |  |  |  | — |
Total securities held-to-maturity |  |  | 31,606 |  |  |  | 32,142 |  |  |  | 8,500 |  |  |  | 8,144 |
Total securities |  | $ | 366,758 |  |  | $ | 343,837 |  |  | $ | 318,772 |  |  | $ | 289,319 |
Schedule of Realized Gain (Loss) [Table Text Block] |
|  | For the Three Months Ended September 30, 2025 |
|  |  |  |  |  | Gross |  |  | Gross |
|  | Proceeds |  |  | Gains |  |  | (Losses) |
Securities available-for-sale |  | $ | — |  |  | $ | — |  |  | $ | — |
|  | For the Three Months Ended September 30, 2024 |
|  |  |  |  |  | Gross |  |  | Gross |
|  | Proceeds |  |  | Gains |  |  | (Losses) |
Securities available-for-sale |  | $ | 3,448 |  |  | $ | 11 |  |  | $ | — |
|  | For the Nine Months Ended September 30, 2025 |
|  |  |  |  |  | Gross |  |  | Gross |
|  | Proceeds |  |  | Gains |  |  | (Losses) |
Securities available-for-sale |  | $ | — |  |  | $ | — |  |  | $ | — |
|  | For the Nine Months Ended September 30, 2024 |
|  |  |  |  |  | Gross |  |  | Gross |
|  | Proceeds |  |  | Gains |  |  | (Losses) |
Securities available-for-sale |  | $ | 101,907 |  |  | $ | 215 |  |  | $ | (8,051 | )

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