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Note 4 - Securities (Tables)

6 Months Ended

Jun. 30, 2024

Notes Tables

Debt Securities, Available-for-Sale [Table Text Block]

June 30, 2024		Amortized Cost				Gross Unrealized Gains				Gross Unrealized Losses				Fair Value
U.S. government agencies and corporations		$	353,018			$	-			$	44,205			$	308,813
States and political subdivisions			178,435				-				32,433				146,002
Mortgage-backed securities			149,839				27				6,120				143,746
Corporate debt securities			6,506				-				849				5,657
U.S. treasury			998				-				20				978
Total securities available for sale		$	688,796			$	27			$	83,627			$	605,196

December 31, 2023		Amortized Cost				Gross Unrealized Gains				Gross Unrealized Losses				Fair Value
U.S. government agencies and corporations		$	353,904			$	-			$	42,060			$	311,844
States and political subdivisions			179,507				-				29,614				149,893
Mortgage-backed securities			156,875				-				6,724				150,151
Corporate debt securities			6,504				-				754				5,750
U.S. treasury			996				-				33				963
Total securities available for sale		$	697,786			$	-			$	79,185			$	618,601

Investments Classified by Contractual Maturity Date [Table Text Block]

		June 30, 2024
		Amortized Cost				Fair Value
Available for Sale:
Due in one year or less		$	20,010			$	19,618
Due after one year through five years			187,697				172,569
Due after five years through ten years			268,663				227,654
Due after ten years			212,426				185,355
Total securities available for sale		$	688,796			$	605,196

Gain (Loss) on Securities [Table Text Block]

June 30, 2024		Less Than 12 Months								12 Months or More
		Fair Value				Gross Unrealized Losses				Fair Value				Gross Unrealized Losses
U.S. government agencies and corporations		$	-			$	-			$	308,813			$	44,205
State and political subdivisions			882				120				145,120				32,313
Mortgage-backed securities			520				1				121,951				6,119
Corporate debt securities			-				-				5,657				849
U.S. treasury			-				-				978				20
Total temporarily impaired securities		$	1,402			$	121			$	582,519			$	83,506

December 31, 2023		Less Than 12 Months								12 Months or More
		Fair Value				Gross Unrealized Losses				Fair Value				Gross Unrealized Losses
U.S. government agencies and corporations		$	-			$	-			$	311,844			$	42,060
State and political subdivisions			884				1				148,763				29,613
Mortgage-backed securities			1,616				26				147,922				6,698
Corporate debt securities			-				-				5,750				754
U.S. treasury			-				-				963				33
Total temporarily impaired securities		$	2,500			$	27			$	615,242			$	79,158

X

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

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