Note 7 - Securities Available for Sale (Tables)

9 Months Ended

Sep. 30, 2015

Note 7 - Securities Available for Sale (Tables) [Line Items]

Schedule of Unrealized Loss on Investments [Table Text Block]

	September 30, 2015
	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
Mortgage backed securities:
Federal National Mortgage Association (FNMA)		6	$	51		(1	)		0	$	0		0			51		(1	)
Collateralized mortgage obligations:
FNMA		2		522		(2	)		0		0		0			522		(2	)
Other marketable securities:
U.S. Government agency obligations		1		5,005		(2	)		0		0		0			5,005		(2	)
Municipal obligations		14		2,168		(6	)		0		0		0			2,168		(6	)
Corporate debt		1		337		(4	)		0		0		0			337		(4	)
Corporate preferred stock		0		0		0			1		350		(350	)		350		(350	)
Corporate equity		1		52		(6	)		0		0		0			52		(6	)
Total temporarily impaired securities		25	$	8,135		(21	)		1	$	350		(350	)	$	8,485		(371	)

	December 31, 2014
	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
Other marketable securities:
U.S. Government agency obligations		22	$	104,453		(551	)		1	$	4,970		(50	)	$	109,423		(601	)
Corporate preferred stock		0		0		0			1		420		(280	)		420		(280	)
Total temporarily impaired securities		22	$	104,453		(551	)		2	$	5,390		(330	)	$	109,843		(881	)

Available-for-sale Securities [Table Text Block]

			Gross unrealized		Gross unrealized
(Dollars in thousands)	Amortized cost		gains		losses			Fair value
September 30, 2015:
Mortgage-backed securities:
Federal Home Loan Mortgage Corporation (FHLMC)	$	1,382		45		0			1,427
FNMA		2,598		41		(1	)		2,638
Government National Mortgage Association (GNMA)		40		0		0			40
Collateralized mortgage obligations:
FHLMC		1,285		9		0			1,294
FNMA		1,625		9		(2	)		1,632
GNMA		49		0		0			49
		6,979		104		(3	)		7,080
Other marketable securities:
U.S. Government agency obligations		133,151		355		(2	)		133,504
Municipal obligations		4,004		17		(6	)		4,015
Corporate debt		341		0		(4	)		337
Corporate preferred stock		700		0		(350	)		350
Corporate equity		58		0		(6	)		52
		138,254		372		(368	)		138,258
	$	145,233		476		(371	)		145,338

			Gross unrealized		Gross unrealized
(Dollars in thousands)	Amortized cost		gains		losses			Fair value
December 31, 2014:
Mortgage-backed securities:
FHLMC	$	1,418		90		0			1,508
FNMA		1,337		64		0			1,401
		2,755		154		0			2,909
Other marketable securities:
U.S. Government agency obligations		135,014		31		(601	)		134,444
Corporate preferred stock		700		0		(280	)		420
Corporate equity		58		3		0			61
		135,772		34		(881	)		134,925
	$	138,527		188		(881	)		137,834

Available-for-sale Securities [Member]

Note 7 - Securities Available for Sale (Tables) [Line Items]

Contractual Obligation, Fiscal Year Maturity Schedule [Table Text Block]

(Dollars in thousands)	Amortized Cost		Fair Value
Due less than one year	$	8,180		8,228
Due after one year through five years		132,979		133,376
Due after five years through ten years		3,038		3,051
Due after ten years		978		631
No stated maturity		58		52
Total	$	145,233		145,338