Note 2 - Investment Securities (Tables)

3 Months Ended

Mar. 31, 2018

Notes Tables

Marketable Securities [Table Text Block]

(In thousands)	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Fair Value
March 31, 2018
Securities available for sale:
Agency mortgage-backed securities	$	111,090	$	-	$	4,345	$	106,745
Agency CMO		18,720		-		471		18,249
Other debt securities:
Agency notes and bonds		70,495		-		1,447		69,048
Municipal obligations		71,198		743		1,140		70,801
Total securities available for sale	$	271,503	$	743	$	7,403	$	264,843
December 31, 2017
Securities available for sale:
Agency mortgage-backed securities	$	114,902	$	-	$	2,253	$	112,649
Agency CMO		15,660		1		338		15,323
Other debt securities:
Agency notes and bonds		70,013		-		985		69,028
Municipal obligations		73,303		1,274		405		74,172
Total securities available for sale	$	273,878	$	1,275	$	3,981	$	271,172
Securities held to maturity:
Agency mortgage-backed securities	$	1	$	-	$	-	$	1
Total securities held to maturity	$	1	$	-	$	-	$	1

Investments Classified by Contractual Maturity Date [Table Text Block]

	Securities Available for Sale
	Amortized Cost		Fair Value
(In thousands)
Due in one year or less	$	15,335	$	15,241
Due after one year through five years		64,630		63,251
Due after five years through ten years		32,072		31,459
Due after ten years		29,656		29,898
		141,693		139,849
Mortgage-backed securities and CMO		129,810		124,994
	$	271,503	$	264,843

Schedule of Unrealized Loss on Investments [Table Text Block]

	Number of Investment Positions		Fair Value		Gross Unrealized Losses
(Dollars in thousands)
Continuous loss position less than twelve months:
Agency mortgage-backed securities		36	$	31,683	$	962
Agency CMO		7		2,948		77
Agency notes and bonds		4		11,047		132
Muncipal obligations		41		21,667		502
Total less than twelve months		88		67,345		1,673
Continuous loss position more than twelve months:
Agency mortgage-backed securities		63		75,048		3,383
Agency CMO		18		11,150		394
Agency notes and bonds		19		57,501		1,315
Muncipal obligations		29		14,284		638
Total more than twelve months		129		157,983		5,730
Total securities available for sale		217	$	225,328	$	7,403

	Number of Investment Positions		Fair Value		Gross Unrealized Losses
(Dollars in thousands)
Continuous loss position less than twelve months:
Agency mortgage-backed securities		37	$	37,570	$	400
Agency CMO		6		3,036		38
Agency notes and bonds		4		11,119		69
Muncipal obligations		20		10,955		83
Total less than twelve months		67		62,680		590
Continuous loss position more than twelve months:
Agency mortgage-backed securities		60		74,960		1,853
Agency CMO		18		11,801		300
Agency notes and bonds		19		57,909		916
Muncipal obligations		29		14,667		322
Total more than twelve months		126		159,337		3,391
Total securities available for sale		193	$	222,017	$	3,981