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Note 3 - Securities (Tables)

3 Months Ended

Mar. 31, 2024

Notes Tables

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

		Amortized Cost				Gross Unrealized Gains				Gross Unrealized Losses				Fair Value
Available-for-Sale Securities
March 31, 2024
Municipal securities		$	929			$	3			$	(6	)		$	926
U.S. Treasury Notes			95,524				—				(2,815	)			92,709
U.S. government-sponsored agencies			141,851				20				(195	)			141,676
Mortgage-backed securities - residential			3,342				26				(102	)			3,266
Collateralized mortgage obligations - residential			990				—				(18	)			972
		$	242,636			$	49			$	(3,136	)		$	239,549
December 31, 2023
Municipal securities		$	930			$	12			$	(8	)		$	934
U.S. Treasury Notes			115,920				—				(3,412	)			112,508
U.S. government-sponsored agencies			35,446				7				(62	)			35,391
Mortgage-backed securities - residential			3,431				27				(91	)			3,367
Collateralized mortgage obligations - residential			1,023				—				(20	)			1,003
		$	156,750			$	46			$	(3,593	)		$	153,203

Investments Classified by Contractual Maturity Date [Table Text Block]

		March 31, 2024
		Amortized Cost				Fair Value
Due in one year or less		$	98,215			$	96,968
Due after one year through five years			140,089				138,343
			238,304				235,311
Mortgage-backed securities - residential			3,342				3,266
Collateralized mortgage obligations - residential			990				972
		$	242,636			$	239,549

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

		Less than 12 Months												12 Months or More												Total
		Count				Fair Value				Unrealized Loss				Count				Fair Value				Unrealized Loss				Count				Fair Value				Unrealized Loss
March 31, 2024
Municipal securities			—			$	—			$	—				1			$	219			$	(6	)			1			$	219			$	(6	)
U.S. Treasury Notes			—				—				—				132				92,709				(2,815	)			132				92,709				(2,815	)
U.S. government-sponsored agencies			10				84,816				(179	)			3				12,984				(16	)			13				97,800				(195	)
Mortgage-backed securities - residential			—				—				—				14				2,425				(102	)			14				2,425				(102	)
Collateralized mortgage obligations - residential			—				—				—				5				972				(18	)			5				972				(18	)
			10			$	84,816			$	(179	)			155			$	109,309			$	(2,957	)			165			$	194,125			$	(3,136	)
December 31, 2023
Municipal securities			—			$	—			$	—				1			$	217			$	(8	)			1			$	217			$	(8	)
U.S. Treasury Notes			—				—				—				170				112,508				(3,412	)			170				112,508				(3,412	)
U.S. government-sponsored agencies			2				8,987				(13	)			4				17,951				(49	)			6				26,938				(62	)
Mortgage-backed securities - residential			—				—				—				17				2,627				(91	)			17				2,627				(91	)
Collateralized mortgage obligations - residential			—				—				—				6				1,003				(20	)			6				1,003				(20	)
			2			$	8,987			$	(13	)			198			$	134,306			$	(3,580	)			200			$	143,293			$	(3,593	)

Gain (Loss) on Securities [Table Text Block]

		Three Months Ended
		March 31,
		2024				2023
Proceeds		$	—			$	42,631
Gross gains			—				—
Gross losses			—				(454	)

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