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Note 14 - Fair Value of Financial Instruments - Carrying Amounts and Estimated Fair Value Hierarchy of Certain Financial Information (Details) - USD ($) $ in Thousands | Dec. 31, 2025 | Dec. 31, 2024
--- | --- | ---
Reported Value Measurement [Member] |  |
Loans, net | $ 128,635 | $ 130,356
Loans held for sale | 4,459 | 1,218
Interest-bearing deposits | 168,166 | 178,260
Other borrowings |  | 5,000
Estimate of Fair Value Measurement [Member] |  |
Loans, net | 122,290 | 124,084
Loans held for sale | 4,548 | 1,242
Interest-bearing deposits | 168,431 | 178,872
Other borrowings |  | 4,999
Estimate of Fair Value Measurement [Member] | Fair Value, Inputs, Level 1 [Member] |  |
Loans, net | 0 | 0
Loans held for sale | 0 | 0
Interest-bearing deposits | 0 | 0
Other borrowings |  | 0
Estimate of Fair Value Measurement [Member] | Fair Value, Inputs, Level 2 [Member] |  |
Loans, net | 0 | 0
Loans held for sale | 4,548 | 1,242
Interest-bearing deposits | 168,431 | 178,872
Other borrowings |  | 4,999
Estimate of Fair Value Measurement [Member] | Fair Value, Inputs, Level 3 [Member] |  |
Loans, net | 122,290 | 124,084
Loans held for sale | 0 | 0
Interest-bearing deposits | $ 0 | 0
Other borrowings |  | $ 0

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