Note 3 - Securities (Tables)

9 Months Ended

Sep. 30, 2020

Notes Tables

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

	As of September 30, 2020
			Gross		Gross
	Amortized		Unrealized		Unrealized			Estimated
(Amounts in thousands)	Costs		Gains		Losses			Fair Values
Available-for-sale securities:
U.S. government & agencies	$	30,942	$	879	$	(10	)	$	31,811
Obligations of state and political subdivisions		87,628		4,281		(46	)		91,863
Residential mortgage-backed securities and collateralized mortgage obligations		161,345		4,512		(165	)		165,692
Commercial mortgage-backed securities		18,920		665		(8	)		19,577
Other asset-backed securities		27,799		327		(37	)		28,089
Total	$	326,634	$	10,664	$	(266	)	$	337,032

	As of December 31, 2019
			Gross		Gross
	Amortized		Unrealized		Unrealized			Estimated
(Amounts in thousands)	Costs		Gains		Losses			Fair Values
Available-for-sale securities:
U.S. government & agencies	$	38,291	$	469	$	(27	)	$	38,733
Obligations of state and political subdivisions		40,702		1,422		(26	)		42,098
Residential mortgage-backed securities and collateralized mortgage obligations		179,114		2,163		(442	)		180,835
Corporate securities		3,005		6		(45	)		2,966
Commercial mortgage-backed securities		19,126		221		(40	)		19,307
Other asset-backed securities		3,019		—		(8	)		3,011
Total	$	283,257	$	4,281	$	(588	)	$	286,950

Amortized Cost and Estimated Fair Value Available for Sale Securities [Table Text Block]

	Available-For-Sale
(Amounts in thousands)	Amortized Costs		Fair Values
Amounts maturing in:
One year or less	$	22,257	$	22,731
After one year through five years		110,662		115,225
After five years through ten years		50,087		51,569
After ten years		143,628		147,507
Total	$	326,634	$	337,032

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

	Three Months Ended September 30,						Nine Months Ended September 30,
(Amounts in thousands)	2020			2019			2020			2019
Investment Securities:
Proceeds from sales of investment securities	$	6,257		$	13,895		$	56,017		$	99,635
Gross realized gains on sales of investment securities:
U.S. government & agencies	$	—		$	10		$	—		$	48
Obligations of state and political subdivisions		249			10			339			305
Residential mortgage-backed securities and collateralized mortgage obligations		—			22			226			86
Corporate securities		12			—			12			—
Commercial mortgage-backed securities		—			5			38			7
Total gross realized gains on sales of investment securities		261			47			615			446
Gross realized losses on sales of investment securities:
U.S. government & agencies		—			(9	)		(14	)		(13	)
Obligations of state and political subdivisions		(3	)		(6	)		(7	)		(96	)
Residential mortgage-backed securities and collateralized mortgage obligations		—			(9	)		(112	)		(157	)
Commercial mortgage-backed securities		—			(11	)		—			(43	)
Total gross realized losses on sales of investment securities		(3	)		(35	)		(133	)		(309	)
Gain on sales of investment securities, net	$	258		$	12		$	482		$	137

Schedule of Unrealized Loss on Investments [Table Text Block]

	As of September 30, 2020
	Less Than 12 Months					12 Months or More					Total
	Fair		Unrealized			Fair		Unrealized			Fair		Unrealized
(Amounts in thousands)	Values		Losses			Values		Losses			Values		Losses
Available-for-sale securities:
U.S. government & agencies	$	—	$	—		$	2,836	$	(10	)	$	2,836	$	(10	)
Obligations of state and political subdivisions		5,915		(46	)		—		—			5,915		(46	)
Residential mortgage-backed securities and collateralized mortgage obligations		17,671		(159	)		285		(6	)		17,956		(165	)
Commercial mortgage-backed securities		2,057		(8	)		—		—			2,057		(8	)
Other asset-backed securities		3,001		(37	)		—		—			3,001		(37	)
Total temporarily impaired securities	$	28,644	$	(250	)	$	3,121	$	(16	)	$	31,765	$	(266	)

	As of December 31, 2019
	Less Than 12 Months					12 Months or More					Total
	Fair		Unrealized			Fair		Unrealized			Fair		Unrealized
(Amounts in thousands)	Values		Losses			Values		Losses			Values		Losses
Available-for-sale securities:
U.S. government & agencies	$	6,473	$	(25	)	$	380	$	(2	)	$	6,853	$	(27	)
Obligations of state and political subdivisions		2,249		(26	)		—		—			2,249		(26	)
Residential mortgage-backed securities and collateralized mortgage obligations		31,817		(207	)		22,166		(235	)		53,983		(442	)
Corporate securities		—		—			955		(45	)		955		(45	)
Commercial mortgage-backed securities		1,464		(1	)		4,549		(39	)		6,013		(40	)
Other asset-backed securities		3,011		(8	)		—		—			3,011		(8	)
Total temporarily impaired securities	$	45,014	$	(267	)	$	28,050	$	(321	)	$	73,064	$	(588	)