Note 4 - Securities (Tables)

9 Months Ended

Sep. 30, 2019

Notes Tables

Available-for-sale Securities [Table Text Block]

	September 30, 2019
	Amortized Costs		Gross Unrealized Gains		Gross Unrealized Losses		Fair Values
Available for Sale:
U.S. Government agencies and corporations	$	162,855	$	2,636	$	428	$	165,063
States and political subdivisions		82,520		1,550		48		84,022
Mortgage-backed securities		81,141		91		298		80,934
Corporate debt securities		3,996		135		---		4,131
Total securities available for sale	$	330,512	$	4,412	$	774	$	334,150

	December 31, 2018
	Amortized Costs		Gross Unrealized Gains		Gross Unrealized Losses		Fair Values
Available for S ale:
U.S. Government agencies and corporations	$	306,264	$	449	$	6,666	$	300,047
States and political subdivisions		118,564		1,218		1,166		118,616
Mortgage-backed securities		586		42		---		628
Corporate debt securities		6,014		---		295		5,719
Total securities available for sale	$	431,428	$	1,709	$	8,127	$	425,010

Investments Classified by Contractual Maturity Date [Table Text Block]

	September 30 , 201 9
	Amortized Cost		Fair Value
Available for S ale:
Due in one year or less	$	61,522	$	61,525
Due after one year through five years		57,871		58,039
Due after five years through ten years		90,075		90,903
Due after ten years		121,044		123,683
Total securities available for sale	$	330,512	$	334,150

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

	September 30, 2019
	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	$	27,231	$	211	$	71,778	$	217
States and political subdivisions		---		---		591		48
Mortgage-backed securities		49,823		298		---		---
Total	$	77,054	$	509	$	72,369	$	265

	December 31, 2018
	Less Than 12 Months				12 Months or More
	Fair Value		Unrealized Loss		Fair Value		Unrealized Loss
Temporarily I mpaired S ecurities:
U.S. Government agencies and corporations	$	17,730	$	216	$	259,992	$	6,450
States and political subdivisions		16,882		352		20,758		814
Corporate debt securities		4,842		194		876		101
Total	$	39,454	$	762	$	281,626	$	7,365