Note 4 - Securities (Tables)

6 Months Ended

Jun. 30, 2020

Notes Tables

Available-for-sale Securities [Table Text Block]

	June 30, 2020
	Amortized Costs		Gross Unrealized Gains		Gross Unrealized Losses		Fair Values
Available for Sale:
U.S. Government agencies and corporations	$	68,909	$	4,617	$	---	$	73,526
States and political subdivisions		146,928		4,535		583		150,880
Mortgage-backed securities		259,040		3,461		269		262,232
Corporate debt securities		3,001		287		---		3,288
Total securities available for sale	$	477,878	$	12,900	$	852	$	489,926

	December 31, 2019
	Amortized Costs		Gross Unrealized Gains		Gross Unrealized Losses		Fair Values
Available for Sale:
U.S. Government agencies and corporations	$	119,903	$	1,995	$	775	$	121,123
States and political subdivisions		88,092		791		644		88,239
Mortgage-backed securities		223,173		45		1,435		221,783
Corporate debt securities		3,998		120		---		4,118
Total securities available for sale	$	435,166	$	2,951	$	2,854	$	435,263

Investments Classified by Contractual Maturity Date [Table Text Block]

	June 30, 2020
	Amortized Cost		Fair Value
Available for Sale:
Due in one year or less	$	9,684	$	9,766
Due after one year through five years		4,479		4,635
Due after five years through ten years		135,247		139,803
Due after ten years		328,468		335,722
Total securities available for sale	$	477,878	$	489,926

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

	June 30, 2020
	Less Than 12 Months				12 Months or More
	Fair Value		Unrealized Loss		Fair Value		Unrealized Loss
Temporarily Impaired Securities:
States and political subdivisions	$	20,438	$	566	$	622	$	17
Mortgage-backed securities		85,915		269		---		---
Total	$	106,353	$	835	$	622	$	17

	December 31, 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	$	53,244	$	738	$	38,962	$	37
States and political subdivisions		35,934		596		591		48
Mortgage-backed securities		181,279		1,435		---		---
Total	$	270,457	$	2,769	$	39,553	$	85