Note 3 - Investment Securities (Tables)

9 Months Ended

Sep. 30, 2020

Notes Tables

Marketable Securities [Table Text Block]

	September 30, 2020									December 31, 2019
			Gross									Gross
	Amortized		Unrealized					Fair		Amortized		Unrealized					Fair
	Cost		Gains		(Losses)			Value		Cost		Gains		(Losses)			Value
	(In Thousands)
Available-for-Sale:
U.S. government obligations	$	2,269	$	39	$	-		$	2,308	$	686	$	9	$	-		$	695
U.S. treasury obligations		5,144		544		-			5,688		12,632		270		-			12,902
Municipal obligations		90,182		5,495		(6	)		95,671		50,699		1,616		(93	)		52,222
Corporate obligations		10,586		87		(9	)		10,664		8,356		40		(8	)		8,388
Mortgage-backed securities		8,156		146		(6	)		8,296		9,460		56		(21	)		9,495
Collateralized mortgage obligations		25,041		884		(3	)		25,922		33,129		297		(92	)		33,334
Asset-backed securities		17,166		15		(377	)		16,804		10,110		-		(271	)		9,839
Total	$	158,544	$	7,210	$	(401	)	$	165,353	$	125,072	$	2,288	$	(485	)	$	126,875

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

	Three Months Ended				Nine Months Ended
	September 30,				September 30,
	2020		2019		2020		2019
	(In Thousands)
Proceeds from sale of available-for-sale securities	$	-	$	-	$	18,149	$	53,257
Gross realized gain on sale of available-for-sale securities	$	-	$	-	$	1,068	$	549
Gross realized loss on sale of available-for-sale securities		-		-		-		(500	)
Net realized gain on sale of available-for-sale securities	$	-	$	-	$	1,068	$	49

Investments Classified by Contractual Maturity Date [Table Text Block]

	September 30, 2020
	Amortized		Fair
	Cost		Value
	(In Thousands)
Due in one year or less	$	1,976	$	1,987
Due from one to five years		16,793		17,517
Due from five to ten years		17,892		18,572
Due after ten years		88,686		93,059
		125,347		131,135
Mortgage-backed securities		8,156		8,296
Collateralized mortgage obligations		25,041		25,922
Total	$	158,544	$	165,353

Schedule of Unrealized Loss on Investments [Table Text Block]

	September 30, 2020
	Less Than 12 Months					12 Months or Longer
			Gross					Gross
	Fair		Unrealized			Fair		Unrealized
	Value		Losses			Value		Losses
	(In Thousands)
U.S. government obligations	$	-	$	-		$	-	$	-
U.S. treasury obligations		-		-			-		-
Municipal obligations		950		(6	)		-		-
Corporate obligations		3,241		(9	)		-		-
Mortgage-backed securities and collateralized mortgage obligations		1,748		(3	)		1,614		(6	)
Asset-backed securities		2,476		(14	)		9,555		(363	)
Total	$	8,415	$	(32	)	$	11,169	$	(369	)

	December 31, 2019
	Less Than 12 Months					12 Months or Longer
			Gross					Gross
	Fair		Unrealized			Fair		Unrealized
	Value		Losses			Value		Losses
	(In Thousands)
U.S. government obligations	$	-	$	-		$	-	$	-
U.S. treasury obligations		-		-			-		-
Municipal obligations		11,142		(93	)		-		-
Corporate obligations		-		-			992		(8	)
Mortgage-backed securities and collateralized mortgage obligations		9,868		(35	)		7,968		(78	)
Asset-backed securities		940		(33	)		8,900		(238	)
Total	$	21,950	$	(161	)	$	17,860	$	(324	)