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Note 4 - Related Party Transactions (Details Textual) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2025 | Dec. 31, 2024
Related Party Transaction [Line Items] |  |
Loans and Leases Receivable, Related Parties | $ 16,243 | $ 15,131
Loans and Leases Receivable, Related Parties, Additions | 2,718 | 832
Loans and Leases Receivable, Related Parties, Proceeds | 1,606 | 1,106
Related Party Deposit Liabilities | 15,889 | 15,583
Consulting Agreement Amount for Transition and Advisory Services | 30 |
Director [Member] | Payments for Architectural Plans [Member] |  |
Related Party Transaction [Line Items] |  |
Related Party Transaction, Amounts of Transaction | $ 60 | $ 39

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