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Note 2 - Securities - Amortized Cost and Fair Value of Securities (Details) - USD ($) $ in Thousands	Jun. 30, 2025	Dec. 31, 2024
Due within one year, amortized cost, available for sale securities	$ 15,316
Due within one year, fair value, available for sale securities	15,300
Due within one year, Amortized cost, held to maturity securities	9,964
Due within one year, fair value, held to maturity securities	9,900
Due after one year through five years, amortized cost, available for sale securities	50,304
Due after one year through five years, fair value, available for sale securities	48,783
Due after one year through five years, Amortized cost, held to maturity securities	18,653
Due after one year through five years, fair value, held to maturity securities	17,745
Due after five years through ten years, amortized cost, available for sale securities	42,126
Due after five years through ten years, fair value, available for sale securities	38,978
Due after five years through ten years, Amortized cost, held to maturity securities	15,447
Due after five years through ten years, fair value, held to maturity securities	14,401
Due after ten years, amortized cost, available for sale securities	98,764
Due after ten years, fair value, available for sale securities	84,518
Due after ten years, Amortized cost, held to maturity securities	62,463
Due after ten years, fair value, held to maturity securities	55,682
Amortized cost, available for sale securities	206,510	$ 185,917
Fair value, available for sale securities	187,579	163,847
Amortized cost, held to maturity securities	106,527	109,835
Fair value, held to maturity securities	$ 97,728	$ 98,874

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Reference 7: http://www.xbrl.org/2003/role/disclosureRef
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Reference 8: http://www.xbrl.org/2003/role/disclosureRef
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Reference 9: http://www.xbrl.org/2003/role/disclosureRef
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