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Note 2 - Investments (Tables) | 3 Months Ended
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Mar. 31, 2025
Notes Tables |
Investment [Table Text Block] |
|  | March 31, 2025 |
|  |  |  |  |  |  |  |  |  |  |  |  |  | Estimated |  |  |  |  |
|  | Amortized |  |  | Unrealized |  |  | Unrealized |  |  | Fair |  |  |  |  |
SECURITIES AVAILABLE-FOR-SALE |  | Cost |  |  | Gains |  |  | Losses |  |  | Values |  |  | ACL |
U.S. agency securities |  | $ | 20,251 |  |  | $ | 45 |  |  | $ | (2,728 | ) |  | $ | 17,568 |  |  | $ | — |
Corporate securities |  |  | 16,000 |  |  |  | 8 |  |  |  | (821 | ) |  |  | 15,187 |  |  |  | — |
Municipal bonds |  |  | 82,495 |  |  |  | — |  |  |  | (12,374 | ) |  |  | 70,121 |  |  |  | — |
Mortgage-backed securities |  |  | 186,222 |  |  |  | 1,462 |  |  |  | (10,302 | ) |  |  | 177,382 |  |  |  | — |
Asset-backed securities |  |  | 11,767 |  |  |  | 67 |  |  |  | (959 | ) |  |  | 10,875 |  |  |  | — |
Total securities available-for-sale |  |  | 316,735 |  |  |  | 1,582 |  |  |  | (27,184 | ) |  |  | 291,133 |  |  |  | — |
SECURITIES HELD-TO-MATURITY |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Corporate securities |  |  | 10,500 |  |  |  | 1 |  |  |  | (243 | ) |  |  | 10,258 |  |  |  | 66 |
Total securities held-to-maturity |  |  | 10,500 |  |  |  | 1 |  |  |  | (243 | ) |  |  | 10,258 |  |  |  | 66 |
Total securities |  | $ | 327,235 |  |  | $ | 1,583 |  |  | $ | (27,427 | ) |  | $ | 301,391 |  |  | $ | 66 |
|  | 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 March 31, |
Corporate Securities |  | 2025 |  |  | 2024 |
Beginning ACL balance |  | $ | 45 |  |  | $ | 45 |
Provision for credit losses |  |  | 21 |  |  |  | — |
Total ending ACL balance |  | $ | 66 |  |  | $ | 45 |
Debt Securities, Held-to-Maturity, Credit Quality Indicator [Table Text Block] |
|  | March 31, |  |  | December 31, |
Corporate securities |  | 2025 |  |  | 2024 |
BBB/BBB- |  | $ | 10,500 |  |  | $ | 8,500 |
Schedule of Financial Instruments Owned and Pledged as Collateral [Table Text Block] |
|  | March 31, 2025 |
Purpose or beneficiary |  | Carrying Value |  |  | Amortized Cost |  |  | Fair Value |
State and local government public deposits |  | $ | 34,483 |  |  | $ | 40,193 |  |  | $ | 34,483 |
Gain (Loss) on Securities [Table Text Block] |
|  | March 31, 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 |  | $ | — |  |  | $ | — |  |  | $ | 15,523 |  |  | $ | (2,728 | ) |  | $ | 15,523 |  |  | $ | (2,728 | )
Corporate securities |  |  | 2,983 |  |  |  | (17 | ) |  |  | 9,196 |  |  |  | (804 | ) |  |  | 12,179 |  |  |  | (821 | )
Municipal bonds |  |  | 1,674 |  |  |  | (4 | ) |  |  | 68,447 |  |  |  | (12,370 | ) |  |  | 70,121 |  |  |  | (12,374 | )
Mortgage-backed securities |  |  | 35,231 |  |  |  | (294 | ) |  |  | 65,190 |  |  |  | (10,008 | ) |  |  | 100,421 |  |  |  | (10,302 | )
Asset-backed securities |  |  | — |  |  |  | — |  |  |  | 6,798 |  |  |  | (959 | ) |  |  | 6,798 |  |  |  | (959 | )
Total securities available-for-sale |  |  | 39,888 |  |  |  | (315 | ) |  |  | 165,154 |  |  |  | (26,869 | ) |  |  | 205,042 |  |  |  | (27,184 | )
SECURITIES HELD-TO-MATURITY |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Corporate securities |  |  | 1,937 |  |  |  | (63 | ) |  |  | 4,319 |  |  |  | (180 | ) |  |  | 6,256 |  |  |  | (243 | )
Total securities held-to-maturity |  |  | 1,937 |  |  |  | (63 | ) |  |  | 4,319 |  |  |  | (180 | ) |  |  | 6,256 |  |  |  | (243 | )
Total securities |  | $ | 41,825 |  |  | $ | (378 | ) |  | $ | 169,473 |  |  | $ | (27,049 | ) |  | $ | 211,298 |  |  | $ | (27,427 | )
|  | 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] |
|  | March 31, 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 |  | $ | 4,965 |  |  | $ | 4,654 |  |  | $ | 4,962 |  |  | $ | 4,575 |
Due after five years through ten years |  |  | 10,976 |  |  |  | 9,434 |  |  |  | 10,975 |  |  |  | 9,193 |
Due after ten years |  |  | 4,310 |  |  |  | 3,480 |  |  |  | 4,310 |  |  |  | 3,370 |
Subtotal |  |  | 20,251 |  |  |  | 17,568 |  |  |  | 20,247 |  |  |  | 17,138 |
Corporate securities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Due after one year through five years |  |  | 14,000 |  |  |  | 13,677 |  |  |  | 11,000 |  |  |  | 10,766 |
Due after five years through ten years |  |  | — |  |  |  | — |  |  |  | 3,000 |  |  |  | 2,918 |
Due after ten years |  |  | 2,000 |  |  |  | 1,510 |  |  |  | 2,000 |  |  |  | 1,442 |
Subtotal |  |  | 16,000 |  |  |  | 15,187 |  |  |  | 16,000 |  |  |  | 15,126 |
Municipal bonds |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Due after one year through five years |  |  | 2,173 |  |  |  | 2,164 |  |  |  | 2,186 |  |  |  | 2,168 |
Due after five years through ten years |  |  | 4,145 |  |  |  | 3,733 |  |  |  | 4,158 |  |  |  | 3,728 |
Due after ten years |  |  | 76,177 |  |  |  | 64,224 |  |  |  | 76,430 |  |  |  | 64,448 |
Subtotal |  |  | 82,495 |  |  |  | 70,121 |  |  |  | 82,774 |  |  |  | 70,344 |
Mortgage-backed securities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Federal National Mortgage Association (“FNMA”) |  |  | 90,055 |  |  |  | 81,520 |  |  |  | 90,771 |  |  |  | 80,677 |
Federal Home Loan Mortgage Corporation (“FHLMC”) |  |  | 49,219 |  |  |  | 49,489 |  |  |  | 48,765 |  |  |  | 47,773 |
Government National Mortgage Association (“GNMA”) |  |  | 46,948 |  |  |  | 46,373 |  |  |  | 39,204 |  |  |  | 38,736 |
Subtotal |  |  | 186,222 |  |  |  | 177,382 |  |  |  | 178,740 |  |  |  | 167,186 |
Asset-backed securities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Due within one year |  |  | 331 |  |  |  | 326 |  |  |  | 203 |  |  |  | 200 |
Due after one year through five years |  |  | 843 |  |  |  | 817 |  |  |  | 1,073 |  |  |  | 1,037 |
Due after five years through ten years |  |  | 2,639 |  |  |  | 2,458 |  |  |  | 2,867 |  |  |  | 2,648 |
Due after ten years |  |  | 7,954 |  |  |  | 7,274 |  |  |  | 8,368 |  |  |  | 7,496 |
Subtotal |  |  | 11,767 |  |  |  | 10,875 |  |  |  | 12,511 |  |  |  | 11,381 |
Total securities available-for-sale |  |  | 316,735 |  |  |  | 291,133 |  |  |  | 310,272 |  |  |  | 281,175 |
SECURITIES HELD-TO-MATURITY |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Corporate securities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Due after five years through ten years |  |  | 10,500 |  |  |  | 10,258 |  |  |  | 8,500 |  |  |  | 8,144 |
Total securities held-to-maturity |  |  | 10,500 |  |  |  | 10,258 |  |  |  | 8,500 |  |  |  | 8,144 |
Total securities |  | $ | 327,235 |  |  | $ | 301,391 |  |  | $ | 318,772 |  |  | $ | 289,319 |
Schedule of Realized Gain (Loss) [Table Text Block] |
|  | For the Three Months Ended March 31, 2025 |
|  |  |  |  |  | Gross |  |  | Gross |
|  | Proceeds |  |  | Gains |  |  | (Losses) |
Securities available-for-sale |  | $ | — |  |  | $ | — |  |  | $ | — |
|  | For the Three Months Ended March 31, 2024 |
|  |  |  |  |  | Gross |  |  | Gross |
|  | Proceeds |  |  | Gains |  |  | (Losses) |
Securities available-for-sale |  | $ | 44,036 |  |  | $ | — |  |  | $ | (7,998 | )

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