Note 4 - Securities (Tables)

3 Months Ended

Mar. 31, 2020

Notes Tables

Available-for-sale Securities [Table Text Block]

	March 31, 2020
	Amortized Costs		Gross Unrealized Gains		Gross Unrealized Losses		Fair Values
Available for Sale:
U.S. Government agencies and corporations	$	96,752	$	4,879	$	24	$	101,607
States and political subdivisions		100,811		2,028		542		102,297
Mortgage-backed securities		232,481		2,469		3,961		230,989
Corporate debt securities		4,000		126		---		4,126
Total securities available for sale	$	434,044	$	9,502	$	4,527	$	439,019

	December 31, 2019
	Amortized Costs		Gross Unrealized Gains		Gross Unrealized Losses		Fair Values
Available for S ale:
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]

	March 31 , 2020
	Amortized Cost		Fair Value
Available for S ale:
Due in one year or less	$	19,102	$	19,196
Due after one year through five years		6,356		6,560
Due after five years through ten years		150,410		153,322
Due after ten years		258,176		259,941
Total securities available for sale	$	434,044	$	439,019

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

	March 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	$	4,972	$	24	$	---	$	---
States and political subdivisions		14,157		500		596		42
Mortgage-backed securities		163,603		3,961		---		---
Total	$	182,732	$	4,485	$	596	$	42

	December 31, 2019
	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	$	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