Note 3 - Investment Securities (Tables)

12 Months Ended

Dec. 31, 2021

Notes Tables

Marketable Securities [Table Text Block]

			Gross		Gross
	Amortized		Unrealized		Unrealized		Fair
(In thousands)	Cost		Gains		Losses		Value
December 31, 2021
Securities available for sale:
Agency mortgage-backed securities	$	102,767	$	604	$	635	$	102,736
Agency CMO		7,863		98		-		7,961
Other debt securities:
Agency notes and bonds		130,641		489		2,034		129,096
Treasury notes and bonds		50,339		-		545		49,794
Municipal obligations		153,610		4,721		583		157,748
Total securities available for sale	$	445,220	$	5,912	$	3,797	$	447,335
Securities held to maturity:
Other debt securities:
Corporate notes	$	2,000	$	4	$	-	$	2,004
Total securities available for sale	$	2,000	$	4	$	-	$	2,004
December 31, 2020
Securities available for sale:
Agency mortgage-backed securities	$	59,997	$	1,362	$	-	$	61,359
Agency CMO		20,842		218		30		21,030
Other debt securities:
Agency notes and bonds		80,359		1,175		3		81,531
Municipal obligations		113,511		6,075		4		119,582
Total securities available for sale	$	274,709	$	8,830	$	37	$	283,502

Investments Classified by Contractual Maturity Date [Table Text Block]

	Securities Available for Sale				Securities Held to Maturity
	Amortized		Fair		Amortized		Fair
	Cost		Value		Cost		Value
(In thousands)
Due in one year or less	$	2,043	$	2,049	$	-	$	-
Due after one year through five years		182,653		181,145		-		-
Due after five years through ten years		56,104		57,063		-		-
Due after ten years		93,790		96,381		2,000		2,004
		334,590		336,638		2,000		2,004
Mortgage-backed securities and
CMO		110,630		110,697		-		-
	$	445,220	$	447,335	$	2,000	$	2,004

Schedule of Unrealized Loss on Investments [Table Text Block]

	Number of				Gross
	Investment		Fair		Unrealized
	Positions		Value		Losses
(Dollars in thousands)
December 31, 2021:
Continuous loss position less than twelve months:
Agency mortgage-backed securities		23	$	67,512	$	607
Agency notes and bonds		39		98,042		1,710
Treasury notes and bonds		11		49,190		545
Muncipal obligations		49		32,642		479
Total less than twelve months		122		247,386		3,341
Continuous loss position more than twelve months:
Agency mortgage-backed securities		1		1,357		28
Agency notes and bonds		4		13,676		324
Muncipal obligations		4		2,957		104
Total more than twelve months		9		17,990		456
Total securities available for sale		131	$	265,376	$	3,797

	Number of				Gross
	Investment		Fair		Unrealized
	Positions		Value		Losses
(Dollars in thousands)
December 31, 2020:
Continuous loss position less than twelve months:
Agency CMO		12	$	6,189	$	18
Agency notes and bonds		2		5,997		3
Municipal obligations		2		1,303		4
Total less than twelve months		16		13,489		25
Continuous loss position more than twelve months:
Agency CMO		4		1,589		12
Total more than twelve months		4		1,589		12
Total securities available for sale		20	$	15,078	$	37