XML 36 R26.htm IDEA: XBRL DOCUMENT v3.23.3

Note 6 - Debt Securities (Tables)

9 Months Ended

Sep. 30, 2023

Notes Tables

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

2023:						Gross				Gross
		Amortized				Unrealized				Unrealized				Estimated
		Cost				Gains				Losses				Fair Value
U.S. government treasuries		$	221,032			$	-			$	(18,510	)		$	202,522
U.S. government agencies			107,597				2				(9,550	)			98,049
U.S. government mortgage-backed securities			119,999				3				(18,450	)			101,552
State and political subdivisions			298,962				6				(33,669	)			265,299
Corporate bonds			77,177				-				(7,655	)			69,522
		$	824,767			$	11			$	(87,834	)		$	736,944

2022:						Gross				Gross
		Amortized				Unrealized				Unrealized				Estimated
		Cost				Gains				Losses				Fair Value
U.S. government treasuries		$	227,065			$	-			$	(19,468	)		$	207,597
U.S. government agencies			110,370				4				(9,441	)			100,933
U.S. government mortgage-backed securities			133,205				4				(16,468	)			116,741
State and political subdivisions			317,179				27				(31,203	)			286,003
Corporate bonds			82,177				7				(7,020	)			75,164
		$	869,996			$	42			$	(83,600	)		$	786,438

Investments Classified by Contractual Maturity Date [Table Text Block]

		Amortized				Estimated
		Cost				Fair Value
Due in one year or less		$	78,232			$	76,604
Due after one year through five years			403,015				368,300
Due after five years through ten years			214,556				183,416
Due after ten years			8,965				7,072
		$	704,768			$	635,392
U.S. government mortgage-backed securities			119,999				101,552
Total		$	824,767			$	736,944

Schedule of Realized Gain (Loss) [Table Text Block]

		Three Months Ended								Nine Months Ended
		September 30,								September 30,
		2023				2022				2023				2022
Proceeds from sales of securities available-for-sale		$	716			$	10,013			$	2,069			$	10,548
Gross realized gains on securities available-for-sale			62				25				73				60
Gross realized losses on securities available-for-sale			(34	)			(23	)			(38	)			(23	)

Schedule of Unrealized Loss on Investments [Table Text Block]

		Less than 12 Months								12 Months or More								Total
2023:		Estimated Fair Value				Unrealized Losses				Estimated Fair Value				Unrealized Losses				Estimated Fair Value				Unrealized Losses
Securities available-for-sale:
U.S. government treasuries		$	-			$	-			$	202,522			$	(18,510	)		$	202,522			$	(18,510	)
U.S. government agencies			1,934				(64	)			95,544				(9,486	)			97,478				(9,550	)
U.S. government mortgage-backed securities			816				(34	)			100,453				(18,416	)			101,269				(18,450	)
State and political subdivisions			17,036				(662	)			246,247				(33,007	)			263,283				(33,669	)
Corporate bonds			4,033				(177	)			65,489				(7,478	)			69,522				(7,655	)
		$	23,819			$	(937	)		$	710,255			$	(86,897	)		$	734,074			$	(87,834	)

		Less than 12 Months								12 Months or More								Total
2022:		Estimated Fair Value				Unrealized Losses				Estimated Fair Value				Unrealized Losses				Estimated Fair Value				Unrealized Losses
Securities available-for-sale:
U.S. government treasuries		$	57,882			$	(3,960	)		$	147,215			$	(15,508	)		$	205,097			$	(19,468	)
U.S. government agencies			61,821				(4,293	)			38,492				(5,148	)			100,313				(9,441	)
U.S. government mortgage-backed securities			45,440				(4,393	)			70,854				(12,075	)			116,294				(16,468	)
State and political subdivisions			181,640				(14,556	)			97,907				(16,647	)			279,547				(31,203	)
Corporate bonds			59,293				(4,281	)			13,382				(2,739	)			72,675				(7,020	)
		$	406,076			$	(31,483	)		$	367,850			$	(52,117	)		$	773,926			$	(83,600	)

X

- Definition

Tabular disclosure of maturities of an entity's investments as well as any other information pertinent to the investments.

+ References

No definition available.

+ Details

Name:	us-gaap_InvestmentsClassifiedByContractualMaturityDateTableTextBlock
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Tabular disclosure of the reconciliation of available-for-sale securities from cost basis to fair value.

+ References

No definition available.

+ Details

Name:	us-gaap_ScheduleOfAvailableForSaleSecuritiesReconciliationTableTextBlock
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Tabular disclosure of the proceeds from sales of available-for-sale securities and the gross realized gains and gross realized losses that have been included in earnings as a result of those sales.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 320
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 9
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481800/320-10-50-9

+ Details

Name:	us-gaap_ScheduleOfRealizedGainLossTableTextBlock
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- Definition

For all investments in an unrealized loss position, including those for which other-than-temporary impairments have not been recognized in earnings (including investments for which a portion of an other-than-temporary impairment has been recognized in other comprehensive income), a tabular disclosure of the aggregate related fair value of investments with unrealized losses and the aggregate amount of unrealized losses (that is, the amount by which amortized cost basis exceeds fair value).

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/otherTransitionRef
-Topic 320
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 6
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481800/320-10-50-6

+ Details

Name:	us-gaap_ScheduleOfUnrealizedLossOnInvestmentsTableTextBlock
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- References

No definition available.

+ Details

Name:	us-gaap_TableTextBlock
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration