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Note 3 - Securities - Securities by Contractual Maturity (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Amortized cost, due in one year or less, available for sale securities	$ 3,795
Fair value, due in one year or less, available for sale securities	3,748
Amortized cost, due after one year through five years, available for sale securities	178,297
Fair value, due after one year through five years, available for sale securities	166,386
Amortized cost, due after five years through ten years, available for sale securities	277,155
Fair value, due after five years through ten years, available for sale securities	238,409
Amortized cost, due after ten years, available for sale securities	238,539
Fair value, due after ten years, available for sale securities	210,058
Amortized cost, total securities available for sale	697,786	$ 759,917
Fair value, total securities available for sale	$ 618,601	$ 656,852

X

- Definition

Amortized cost of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 944
-SubTopic 210
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+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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+ References

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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