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Note 4 - Securities (Tables)

3 Months Ended

Mar. 31, 2021

Notes Tables

Available-for-sale Securities [Table Text Block]

		March 31, 2021
		Amortized Costs				Gross Unrealized Gains				Gross Unrealized Losses				Fair Values
Available for Sale:
U.S. Government agencies and corporations		$	131,670			$	2,933			$	4,378			$	130,225
States and political subdivisions			199,874				3,706				4,395				199,185
Mortgage-backed securities			236,732				3,293				229				239,796
Corporate debt securities			2,001				152				-				2,153
Total securities available for sale		$	570,277			$	10,084			$	9,002			$	571,359

		December 31, 2020
		Amortized Costs				Gross Unrealized Gains				Gross Unrealized Losses				Fair Values
Available for Sale:
U.S. Government agencies and corporations		$	86,859			$	4,477			$	173			$	91,163
States and political subdivisions			196,435				7,778				252				203,961
Mortgage-backed securities			244,780				4,473				78				249,175
Corporate debt securities			2,001				442				-				2,443
Total securities available for sale		$	530,075			$	17,170			$	503			$	546,742

Investments Classified by Contractual Maturity Date [Table Text Block]

		March 31, 2021
		Amortized Cost				Fair Value
Available for Sale:
Due in one year or less		$	3,072			$	3,115
Due after one year through five years			5,438				5,573
Due after five years through ten years			178,874				179,196
Due after ten years			382,893				383,475
Total securities available for sale		$	570,277			$	571,359

Schedule of Temporary Impairment Losses, Investments [Table Text Block]

		March 31, 2021
		Less Than 12 Months								12 Months or More
		Fair Value				Unrealized Loss				Fair Value				Unrealized Loss
Temporarily Impaired Securities:
U.S. Government agencies and corporations		$	89,509			$	4,378			$	-			$	-
States and political subdivisions			89,706				4,198				4,092				197
Mortgage-backed securities			12,287				229				-				-
Total		$	191,502			$	8,805			$	4,092			$	197

		December 31, 2020
		Less Than 12 Months								12 Months or More
		Fair Value				Unrealized Loss				Fair Value				Unrealized Loss
Temporarily Impaired Securities:
U.S. Government agencies and corporations		$	28,798			$	173			$	-			$	-
States and political subdivisions			32,353				249				635				3
Mortgage-backed securities			8,816				76				4,060				2
Total		$	69,967			$	498			$	4,695			$	5

X

- Definition

Tabular disclosure of available-for-sale securities which includes, but is not limited to, changes in the cost basis and fair value, fair value and gross unrealized gain (loss), fair values by type of security, contractual maturity and classification, amortized cost basis, contracts to acquire securities to be accounted for as available-for-sale, debt maturities, transfers to trading, change in net unrealized holding gain (loss) net of tax, continuous unrealized loss position fair value, aggregate losses qualitative disclosures, other than temporary impairment (OTTI) losses or other disclosures related to available for sale securities.

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Tabular disclosure of investments in an unrealized loss position 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), including: (a) the aggregate related fair value of investments with unrealized losses, (b) 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/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 6
-URI http://asc.fasb.org/extlink&oid=121645371&loc=d3e27290-111563

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