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Note 6 - Fair Value Measurements - Fair Value On Recurring Basis (Details) - USD ($) $ in Thousands | Mar. 31, 2024 | Dec. 31, 2023
--- | --- | ---
Securities available for sale | $ 79,799 | $ 82,135
U.S. Treasury Notes [Member] |  |
Securities available for sale | 2,992 | 2,973
US Government Agencies Debt Securities [Member] |  |
Securities available for sale | 8,803 | 9,106
Municipal Bonds [Member] |  |
Securities available for sale | 13,387 | 13,570
Residential Mortgage-Backed Securities [Member] |  |
Securities available for sale | 28,966 | 30,351
Fair Value, Recurring [Member] |  |
Securities available for sale | 79,799 | 82,135
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 1 [Member] |  |
Securities available for sale | 2,992 | 2,973
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] |  |
Securities available for sale | 76,807 | 79,162
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] |  |
Securities available for sale | 0 | 0
Fair Value, Recurring [Member] | U.S. Treasury Notes [Member] |  |
Securities available for sale | 2,992 | 2,973
Fair Value, Recurring [Member] | U.S. Treasury Notes [Member] | Fair Value, Inputs, Level 1 [Member] |  |
Securities available for sale | 2,992 | 2,973
Fair Value, Recurring [Member] | U.S. Treasury Notes [Member] | Fair Value, Inputs, Level 2 [Member] |  |
Securities available for sale | 0 | 0
Fair Value, Recurring [Member] | U.S. Treasury Notes [Member] | Fair Value, Inputs, Level 3 [Member] |  |
Securities available for sale | 0 | 0
Fair Value, Recurring [Member] | US Government Agencies Debt Securities [Member] |  |
Securities available for sale | 8,803 | 9,106
Fair Value, Recurring [Member] | US Government Agencies Debt Securities [Member] | Fair Value, Inputs, Level 1 [Member] |  |
Securities available for sale | 0 | 0
Fair Value, Recurring [Member] | US Government Agencies Debt Securities [Member] | Fair Value, Inputs, Level 2 [Member] |  |
Securities available for sale | 8,803 | 9,106
Fair Value, Recurring [Member] | US Government Agencies Debt Securities [Member] | Fair Value, Inputs, Level 3 [Member] |  |
Securities available for sale | 0 | 0
Fair Value, Recurring [Member] | Municipal Bonds [Member] |  |
Securities available for sale | 13,387 | 13,570
Fair Value, Recurring [Member] | Municipal Bonds [Member] | Fair Value, Inputs, Level 1 [Member] |  |
Securities available for sale | 0 | 0
Fair Value, Recurring [Member] | Municipal Bonds [Member] | Fair Value, Inputs, Level 2 [Member] |  |
Securities available for sale | 13,387 | 13,570
Fair Value, Recurring [Member] | Municipal Bonds [Member] | Fair Value, Inputs, Level 3 [Member] |  |
Securities available for sale | 0 | 0
Fair Value, Recurring [Member] | Residential Mortgage-Backed Securities [Member] |  |
Securities available for sale | 28,966 | 30,351
Fair Value, Recurring [Member] | Residential Mortgage-Backed Securities [Member] | Fair Value, Inputs, Level 1 [Member] |  |
Securities available for sale | 0 | 0
Fair Value, Recurring [Member] | Residential Mortgage-Backed Securities [Member] | Fair Value, Inputs, Level 2 [Member] |  |
Securities available for sale | 28,966 | 30,351
Fair Value, Recurring [Member] | Residential Mortgage-Backed Securities [Member] | Fair Value, Inputs, Level 3 [Member] |  |
Securities available for sale | 0 | 0
Fair Value, Recurring [Member] | Collateralized Mortgage Obligations [Member] |  |
Securities available for sale | 25,651 | 26,135
Fair Value, Recurring [Member] | Collateralized Mortgage Obligations [Member] | Fair Value, Inputs, Level 1 [Member] |  |
Securities available for sale | 0 | 0
Fair Value, Recurring [Member] | Collateralized Mortgage Obligations [Member] | Fair Value, Inputs, Level 2 [Member] |  |
Securities available for sale | 25,651 | 26,135
Fair Value, Recurring [Member] | Collateralized Mortgage Obligations [Member] | Fair Value, Inputs, Level 3 [Member] |  |
Securities available for sale | $ 0 | $ 0

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