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Note 2 - Securities - Amortized Cost and Fair Value of Securities (Details) - USD ($) $ in Thousands | Jun. 30, 2024 | Dec. 31, 2023 | Sep. 01, 2022
--- | --- | --- | ---
Due within one year, amortized cost, available for sale securities | $ 1,111 |  |
Due within one year, fair value, available for sale securities | 1,096 |  |
Due within one year, amortized cost, held to maturity securities | 10,534 |  |
Due within one year, fair value, held to maturity securities | 10,456 |  |
Due after one year through five years, amortized cost, available for sale securities | 30,939 |  |
Due after one year through five years, fair value, available for sale securities | 28,641 |  |
Due after one year through five years, amortized cost, held to maturity securities | 23,167 |  |
Due after one year through five years, fair value, held to maturity securities | 21,987 |  |
Due after five years through ten years, amortized cost, available for sale securities | 31,574 |  |
Due after five years through ten years, fair value, available for sale securities | 28,077 |  |
Due after five years through ten years, amortized cost, held to maturity securities | 17,399 |  |
Due after five years through ten years, fair value, held to maturity securities | 15,655 |  |
Due after ten years, amortized cost, available for sale securities | 103,101 |  |
Due after ten years, fair value, available for sale securities | 87,002 |  |
Due after ten years, amortized cost, held to maturity securities | 72,505 |  |
Due after ten years, fair value, held to maturity securities | 64,144 |  |
Amortized cost, available for sale securities | 166,726 | $ 173,458 | $ 82,200
Fair value, available for sale securities | 144,816 | 152,857 | $ 74,400
Amortized cost, held to maturity securities | 123,606 | 148,351 |
Fair value, held to maturity securities | $ 112,242 | $ 137,614 |

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