Note 3 - Investment Securities Available for Sale (Tables)

6 Months Ended

Jun. 30, 2025

Notes Tables

Schedule of Available-for-Sale Securities Reconciliation [Table Text Block]

Available-for-Sale		June 30, 2025
						Gross				Gross
		Amortized				Unrealized				Unrealized				Fair
		Cost				Gains				Losses				Value
Debt securities:
U.S. Government-sponsored agencies collateralized by mortgage obligations - residential			232,554				1,187				(11,217	)			222,524
U.S. Government- sponsored agencies collateralized by mortgage obligations - commercial			138,530				930				(10,219	)			129,241
Obligations of states and political subdivisions			97,947				299				(10,335	)			87,911
		$	469,031			$	2,416			$	(31,771	)		$	439,676

Available-for-Sale		December 31, 2024
						Gross				Gross
		Amortized				Unrealized				Unrealized				Fair
		Cost				Gains				Losses				Value
Debt securities:
U.S. Government-sponsored agencies collateralized by mortgage obligations - residential			243,709				138				(15,456	)			228,391
U.S. Government- sponsored agencies collateralized by mortgage obligations - commercial			133,749				77				(11,956	)			121,870
Obligations of states and political subdivisions			95,975				315				(8,816	)			87,474
		$	473,433			$	530			$	(36,228	)		$	437,735

Debt Securities, Available-for-Sale, Unrealized Loss Position, Fair Value [Table Text Block]

June 30, 2025		Less than 12 Months								12 Months or More								Total
		Fair				Unrealized				Fair				Unrealized				Fair				Unrealized
		Value				Losses				Value				Losses				Value				Losses
Debt securities:
U.S. Government-sponsored agencies collateralized by mortgage obligations - residential		$	37,229			$	413			$	90,718			$	10,804			$	127,947			$	11,217
U.S. Government- sponsored agencies collateralized by mortgage obligations - commercial			8,265				54				66,204				10,165				74,469				10,219
Obligations of states and political subdivisions			23,086				667				47,881				9,668				70,967				10,335
		$	68,580			$	1,134			$	204,803			$	30,637			$	273,383			$	31,771

December 31, 2024		Less than 12 Months								12 Months or More								Total
		Fair				Unrealized				Fair				Unrealized				Fair				Unrealized
		Value				Losses				Value				Losses				Value				Losses
Debt securities:
U.S. Government-sponsored agencies collateralized by mortgage obligations - residential			107,328				1,917				94,506				13,539				201,834				15,456
U.S. Government- sponsored agencies collateralized by mortgage obligations - commercial			55,921				926				57,735				11,030				113,656				11,956
Obligations of states and political subdivisions			18,938				250				48,460				8,566				67,398				8,816
		$	182,187			$	3,093			$	200,701			$	33,135			$	382,888			$	36,228

Investments Classified by Contractual Maturity Date [Table Text Block]

		Amortized Cost				Estimated Fair Value
Within one year		$	735			$	733
After one year through five years			6,072				6,087
After five years through ten years			19,749				19,500
After ten years			71,391				61,591
Investment securities not due at a single maturity date:
U.S. Government-sponsored agencies collateralized by mortgage obligations - residential			232,554				222,524
U.S. Government- sponsored agencies collateralized by mortgage obligations - commercial			138,530				129,241
		$	469,031			$	439,676