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Note 5 - Allowance for Credit Losses on Loans and Nonperforming Assets - Loans and Allowance for Loan Losses by Evaluation Method (Details) - USD ($) $ in Thousands | Dec. 31, 2025 | Dec. 31, 2024 | Dec. 31, 2023
--- | --- | --- | ---
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |
Less: allowance for credit losses on loans | $ 9,892 | $ 10,262 | $ 9,094
Loans, individually evaluated | 8,802 | 10,521 |
Loans, collectively evaluated | 991,124 | 978,092 |
Loans | 999,926 | 988,613 |
Individually Evaluated [Member] |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |
Less: allowance for credit losses on loans | 106 | 80 |
Collectively Evaluated [Member] |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |
Less: allowance for credit losses on loans | 9,786 | 10,182 |
Real Estate Construction Portfolio Segment [Member] |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |
Less: allowance for credit losses on loans | 335 | 348 | 408
Loans, individually evaluated | 0 | 0 |
Loans, collectively evaluated | 40,694 | 50,798 |
Loans | 40,694 | 50,798 |
Real Estate Construction Portfolio Segment [Member] | Individually Evaluated [Member] |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |
Less: allowance for credit losses on loans | 0 | 0 |
Real Estate Construction Portfolio Segment [Member] | Collectively Evaluated [Member] |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |
Less: allowance for credit losses on loans | 335 | 348 |
Consumer Real Estate Portfolio Segment [Member] |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |
Less: allowance for credit losses on loans | 3,804 | 3,926 | 3,162
Loans, individually evaluated | 465 | 497 |
Loans, collectively evaluated | 328,188 | 307,358 |
Loans | 328,653 | 307,855 |
Consumer Real Estate Portfolio Segment [Member] | Individually Evaluated [Member] |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |
Less: allowance for credit losses on loans | 26 | 31 |
Consumer Real Estate Portfolio Segment [Member] | Collectively Evaluated [Member] |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |
Less: allowance for credit losses on loans | 3,778 | 3,895 |
Commercial Real Estate Portfolio Segment [Member] |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |
Less: allowance for credit losses on loans | 3,784 | 4,299 | 3,576
Loans, individually evaluated | 8,337 | 10,024 |
Loans, collectively evaluated | 459,446 | 468,054 |
Loans | 467,783 | 478,078 |
Commercial Real Estate Portfolio Segment [Member] | Individually Evaluated [Member] |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |
Less: allowance for credit losses on loans | 80 | 49 |
Commercial Real Estate Portfolio Segment [Member] | Collectively Evaluated [Member] |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |
Less: allowance for credit losses on loans | 3,704 | 4,250 |
Commercial Non Real Estate Segment [Member] |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |
Less: allowance for credit losses on loans | 846 | 655 | 682
Loans, individually evaluated | 0 | 0 |
Loans, collectively evaluated | 52,018 | 51,844 |
Loans | 52,018 | 51,844 |
Commercial Non Real Estate Segment [Member] | Individually Evaluated [Member] |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |
Less: allowance for credit losses on loans | 0 | 0 |
Commercial Non Real Estate Segment [Member] | Collectively Evaluated [Member] |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |
Less: allowance for credit losses on loans | 846 | 655 |
Public Sector and IDA Portfolio Segment [Member] |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |
Less: allowance for credit losses on loans | 306 | 336 | 333
Loans, individually evaluated | 0 | 0 |
Loans, collectively evaluated | 63,677 | 57,171 |
Loans | 63,677 | 57,171 |
Public Sector and IDA Portfolio Segment [Member] | Individually Evaluated [Member] |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |
Less: allowance for credit losses on loans | 0 | 0 |
Public Sector and IDA Portfolio Segment [Member] | Collectively Evaluated [Member] |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |
Less: allowance for credit losses on loans | 306 | 336 |
Consumer Non Real Estate Portfolio Segment [Member] |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |
Less: allowance for credit losses on loans | 767 | 648 | 583
Loans, individually evaluated | 0 | 0 |
Loans, collectively evaluated | 47,101 | 42,867 |
Loans | 47,101 | 42,867 |
Consumer Non Real Estate Portfolio Segment [Member] | Individually Evaluated [Member] |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |
Less: allowance for credit losses on loans | 0 | 0 |
Consumer Non Real Estate Portfolio Segment [Member] | Collectively Evaluated [Member] |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |
Less: allowance for credit losses on loans | 767 | 648 |
Unallocated Financing Receivables [Member] |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |
Less: allowance for credit losses on loans | 50 | 50 | $ 350
Unallocated Financing Receivables [Member] | Individually Evaluated [Member] |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |
Less: allowance for credit losses on loans | 0 | 0 |
Unallocated Financing Receivables [Member] | Collectively Evaluated [Member] |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |
Less: allowance for credit losses on loans | $ 50 | $ 50 |

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