Note 7 - Securities Available for Sale (Tables)

3 Months Ended

Mar. 31, 2020

Notes Tables

Schedule of Unrealized Loss on Investments [Table Text Block]

	Less Than Twelve Months						Twelve Months or More							Total
(Dollars in thousands)	# of Investments		Fair Value		Unrealized Losses		# of Investments		Fair Value		Unrealized Losses			Fair Value		Unrealized Losses
March 31, 2020
Other marketable securities:
Corporate preferred stock		0	$	0		0		1	$	525		(175	)	$	525		(175	)
Total temporarily impaired securities		0	$	0		0		1	$	525		(175	)	$	525		(175	)

	Less Than Twelve Months							Twelve Months or More							Total
(Dollars in thousands)	# of Investments		Fair Value		Unrealized Losses			# of Investments		Fair Value		Unrealized Losses			Fair Value		Unrealized Losses
December 31, 2019
Mortgage backed securities:
FNMA		4	$	12,143		(65	)		0	$	0		0		$	12,143		(65	)
Other marketable securities:
U.S. Government agency obligations		0		0		0			4		19,972		(21	)		19,972		(21	)
Corporate preferred stock		0		0		0			1		665		(35	)		665		(35	)
Total temporarily impaired securities		4	$	12,143		(65	)		5	$	20,637		(56	)	$	32,780		(121	)

Available-for-sale Securities [Table Text Block]

(Dollars in thousands)	Amortized cost		Gross unrealized gains		Gross unrealized losses			Fair value
March 31, 2020
Mortgage-backed securities:
Federal National Mortgage Association (FNMA)	$	44,499		1,269		0			45,768
Federal Home Loan Mortgage Corporation (FHLMC)		7,499		248		0			7,747
Collateralized mortgage obligations:
FNMA		162		10		0			172
		52,160		1,527		0			53,687
Other marketable securities:
U.S. Government agency obligations		45,080		478		0			45,558
Municipal obligations		1,092		4		0			1,096
Corporate obligations		73		0		0			73
Corporate preferred stock		700		0		(175	)		525
		46,945		482		(175	)		47,252
	$	99,105		2,009		(175	)		100,939

(Dollars in thousands)	Amortized cost		Gross unrealized gains		Gross unrealized losses			Fair value
December 31, 2019
Mortgage-backed securities:
FNMA	$	46,604		47		(65	)		46,586
FHLMC		8,004		88		0			8,092
Collateralized mortgage obligations:
FNMA		169		4		0			173
		54,777		139		(65	)		54,851
Other marketable securities:
U.S. Government agency obligations		49,974		39		(21	)		49,992
Municipal obligations		1,969		7		0			1,976
Corporate obligations		108		0		0			108
Corporate preferred stock		700		0		(35	)		665
		52,751		46		(56	)		52,741
	$	107,528		185		(121	)		107,592

Available-for-sale Securities [Member]

Notes Tables

Contractual Obligation, Fiscal Year Maturity [Table Text Block]

(Dollars in thousands)	Amortized Cost		Fair Value
Due less than one year	$	46,906		47,594
Due after one year through five years		37,624		38,539
Due after five years through ten years		13,469		13,863
Due after ten years		1,106		943
Total	$	99,105		100,939