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Note 2 - Securities - Amortized Cost and Fair Value of Securities (Details) - USD ($) $ in Thousands	Mar. 31, 2025	Dec. 31, 2024
Due within one year, amortized cost, available for sale securities	$ 1,335
Due within one year, fair value, available for sale securities	1,331
Due within one year, amortized cost, held to maturity securities	206
Due within one year, fair value, held to maturity securities	205
Due after one year through five years, amortized cost, available for sale securities	33,931
Due after one year through five years, fair value, available for sale securities	32,194
Due after one year through five years, amortized cost, held to maturity securities	28,080
Due after one year through five years, fair value, held to maturity securities	26,930
Due after five years through ten years, amortized cost, available for sale securities	39,598
Due after five years through ten years, fair value, available for sale securities	36,639
Due after five years through ten years, amortized cost, held to maturity securities	12,829
Due after five years through ten years, fair value, held to maturity securities	11,979
Due after ten years, amortized cost, available for sale securities	106,143
Due after ten years, fair value, available for sale securities	90,812
Due after ten years, amortized cost, held to maturity securities	67,264
Due after ten years, fair value, held to maturity securities	59,831
Amortized cost, available for sale securities	181,007	$ 185,917
Fair value, available for sale securities	160,976	163,847
Amortized cost, held to maturity securities	108,379	109,835
Fair value, held to maturity securities	$ 98,945	$ 98,874

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