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Note 3 - Loans and Allowance for Credit Losses - Allowance for Loan Losses (Details) - USD ($) $ in Thousands | 9 Months Ended | 12 Months Ended
--- | --- | ---
Sep. 30, 2024 | Sep. 30, 2023 | Dec. 31, 2023
Balance |  | $ 9,094 | $ 8,225 | $ 8,225
Charge-offs |  | (411) | (232) | (478)
Recoveries |  | 158 | 235 | 283
Recovery of credit losses |  | 1,312 | (389) | (1,278)
Merger adjustment(1) | [1] | 175 |  |
Balance |  | 10,328 | 10,181 | 9,094
Cumulative Effect, Period of Adoption, Adjustment [Member] | Accounting Standards Update 2016-13 [Member] |  |  |  |
Balance |  |  | 2,342 | 2,342
Real Estate Construction Portfolio Segment[Member] |  |  |  |
Balance |  | 408 | 450 | 450
Charge-offs |  | 0 | 0 | 0
Recoveries |  | 0 | 0 | 0
Recovery of credit losses |  | 43 | 133 | (21)
Merger adjustment(1) | [1] | 10 |  |
Balance |  | 461 | 562 | 408
Real Estate Construction Portfolio Segment[Member] | Cumulative Effect, Period of Adoption, Adjustment [Member] | Accounting Standards Update 2016-13 [Member] |  |  |  |
Balance |  |  | (21) | (21)
Consumer Real Estate Portfolio Segment [Member] |  |  |  |
Balance |  | 3,162 | 2,199 | 2,199
Charge-offs |  | 0 | (17) | (17)
Recoveries |  | 0 | 103 | 103
Recovery of credit losses |  | 697 | (353) | (384)
Merger adjustment(1) | [1] | 97 |  |
Balance |  | 3,956 | 3,193 | 3,162
Consumer Real Estate Portfolio Segment [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member] | Accounting Standards Update 2016-13 [Member] |  |  |  |
Balance |  |  | 1,261 | 1,261
Commercial Real Estate Portfolio Segment [Member] |  |  |  |
Balance |  | 3,576 | 3,642 | 3,642
Charge-offs |  | 0 | 0 | 0
Recoveries |  | 41 | 37 | 45
Recovery of credit losses |  | 589 | (212) | (811)
Merger adjustment(1) | [1] | 55 |  |
Balance |  | 4,261 | 4,167 | 3,576
Commercial Real Estate Portfolio Segment [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member] | Accounting Standards Update 2016-13 [Member] |  |  |  |
Balance |  |  | 700 | 700
Commercial Non Real Estate Segment [Member] |  |  |  |
Balance |  | 682 | 930 | 930
Charge-offs |  | (145) | (11) | (214)
Recoveries |  | 12 | 4 | 6
Recovery of credit losses |  | 106 | (300) | (256)
Merger adjustment(1) | [1] | 4 |  |
Balance |  | 659 | 839 | 682
Commercial Non Real Estate Segment [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member] | Accounting Standards Update 2016-13 [Member] |  |  |  |
Balance |  |  | 216 | 216
Public Sector and IDA Portfolio Segment[Member] |  |  |  |
Balance |  | 333 | 319 | 319
Charge-offs |  | 0 | 0 | 0
Recoveries |  | 0 | 0 | 0
Recovery of credit losses |  | 5 | 10 | 29
Merger adjustment(1) | [1] | 0 |  |
Balance |  | 338 | 314 | 333
Public Sector and IDA Portfolio Segment[Member] | Cumulative Effect, Period of Adoption, Adjustment [Member] | Accounting Standards Update 2016-13 [Member] |  |  |  |
Balance |  |  | (15) | (15)
Consumer Non Real Estate Portfolio Segment [Member] |  |  |  |
Balance |  | 583 | 506 | 506
Charge-offs |  | (266) | (204) | (247)
Recoveries |  | 105 | 91 | 129
Recovery of credit losses |  | 139 | 156 | 123
Merger adjustment(1) | [1] | 9 |  |
Balance |  | 570 | 621 | 583
Consumer Non Real Estate Portfolio Segment [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member] | Accounting Standards Update 2016-13 [Member] |  |  |  |
Balance |  |  | 72 | 72
Unallocated Financing Receivables [Member] |  |  |  |
Balance |  | 350 | 179 | 179
Charge-offs |  | 0 | 0 | 0
Recoveries |  | 0 | 0 | 0
Recovery of credit losses |  | (267) | 177 | 42
Merger adjustment(1) | [1] | 0 |  |
Balance |  | $ 83 | 485 | 350
Unallocated Financing Receivables [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member] | Accounting Standards Update 2016-13 [Member] |  |  |  |
Balance |  |  | $ 129 | $ 129
[1] | Adjustment for PCD acquired loans.

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