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Note 3 - Investment Securities (Tables)

9 Months Ended

Sep. 30, 2024

Notes Tables

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

		Amortized Cost				Unrealized Gains				Unrealized Losses				Fair Value
September 30, 2024
Debt Securities, Available-for-Sale:
U.S. Treasury notes		$	69,717				—				4,145				65,572
U.S. Agency notes			88,668				—				5,360				83,308
Corporate bonds			7,450				—				588				6,862
U.S. Agency mortgage-backed securities			75,422				7				7,090				68,339
Municipal securities:															—
Non-taxable			4,596				—				222				4,374
Taxable			36,674				1				2,508				34,167
		$	282,527				8				19,913				262,622
Debt Securities, Held-to-Maturity:
Municipal securities:
Non-taxable		$	15,454				10				765				14,699
Taxable			3,283				—				300				2,983
		$	18,737				10				1,065				17,682
December 31, 2023
Debt Securities, Available-for-Sale:
U.S. Treasury notes		$	74,404				—				6,202				68,202
U.S. Agency notes			88,978				—				8,077				80,901
Corporate Bonds			7,450				—				916				6,534
U.S. Agency mortgage-backed securities			81,634				2				8,846				72,790
Municipal securities:
Non-taxable			7,416				—				245				7,171
Taxable			44,923				1				3,921				41,003
		$	304,805				3				28,207				276,601
Debt Securities, Held-to-Maturity:
Municipal securities:
Non-taxable		$	13,580				4				872				12,712
Taxable			3,283				—				316				2,967
		$	16,863				4				1,188				15,679

Unrealized Gain (Loss) on Investments [Table Text Block]

		Less than Twelve Months								Twelve Months or Greater
		Fair Value				Unrealized Losses				Fair Value				Unrealized Losses
September 30, 2024
Available-for-Sale:
U.S. Treasury notes		$	1,982				6				63,590				4,139
U.S. Agency notes			—				—				83,308				5,360
Corporate bonds			—				—				6,862				588
U.S. Agency mortgage-backed securities			—				—				68,025				7,090
Municipal securities:			—				—				—				—
Non-taxable			—				—				4,374				222
Taxable			—				—				34,046				2,508
		$	1,982				6				260,205				19,907
Held-to-Maturity:
Municipal securities:
Non-taxable		$	—				—				11,707				765
Taxable			—				—				2,983				300
		$	—				—				14,690				1,065
December 31, 2023
Available-for-Sale:
U.S. Treasury notes		$	—				—				68,202				6,202
U.S. Agency notes			—				—				80,901				8,077
Corporate Bonds			734				16				5,800				900
U.S. Agency mortgage-backed securities			—				—				72,287				8,846
Municipal securities:
Non-taxable			1,540				10				5,631				235
Taxable			—				—				40,392				3,921
		$	2,274				26				273,213				28,181
Held-to-Maturity:
Municipal securities:
Non-taxable		$	6,012				476				5,975				396
Taxable			—				—				2,966				316
		$	6,012				476				8,941				712

Investments Classified by Contractual Maturity Date [Table Text Block]

		Available-for-Sale								Held-to-Maturity
		Amortized Cost				Fair Value				Amortized Cost				Fair Value
Due within one year		$	25,093				24,668				1,163				1,158
Due from one to five years			153,392				143,285				1,301				1,278
Due from five to ten years			28,620				26,331				10,459				9,919
Due after ten years			—				—				5,814				5,327
			207,105				194,284				18,737				17,682
U.S. Agency mortgage-backed securities			75,422				68,338				—				—
		$	282,527				262,622				18,737				17,682

Gain (Loss) on Securities [Table Text Block]

		Three Months Ended								Nine Months Ended
		September 30,								September 30,
		2024				2023				2024				2023
Proceeds from sales		$	—				—				9,615				—
Gross realized gains			—				—				—				—
Gross realized losses			—				—				214				—

Marketable Securities [Table Text Block]

		September 30, 2024								December 31, 2023
		Amortized				Fair				Amortized				Fair
		Cost				Value				Cost				Value
Mutual Funds		$	1,442				1,294				1,415				1,240
Equity Securities			10				94				10				96
Total equity securities with a readily determinable fair value		$	1,452				1,388				1,425				1,336

		Three Months Ended								Nine Months Ended
		September 30,								September 30,
		2024				2023				2024				2023
Net gains (losses) recognized during the period on equity securities		$	49				(33	)			25				(78	)
Less net losses recognized during the period on equity securities sold during the period			—				—				—				(61	)
Net unrealized gains (losses) recognized during the reporting period on equity securities still held at period end		$	49				(33	)			25				(17	)

X

- Definition

Tabular disclosure of realized and unrealized gain (loss) on investment in security.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 220
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03(9)(a))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147483621/220-10-S99-2

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 220
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03(7)(c))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147483621/220-10-S99-2

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