Note 8 - Securities Available For Sale (Tables)

6 Months Ended

Jun. 30, 2014

Investments, Debt and Equity Securities [Abstract]

Schedule of Unrealized Loss on Investments [Table Text Block]

								June 30, 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		6	$	27,928		(71	)		2	$	9,985		(39	)	$	37,912		(110	)
Corporate preferred stock		0		0		0			1		315		(385	)		315		(385	)
Total temporarily impaired securities		6	$	27,928		(71	)		3	$	10,299		(424	)	$	38,227		(495	)

								December 31, 2013
	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		20	$	93,390		(637	)		0	$	0		0		$	93,390		(637	)
Corporate preferred stock		0		0		0			1		280		(420	)		280		(420	)
Total temporarily impaired securities		20	$	93,390		(637	)		1		280		(420	)	$	93,670		(1,057	)

Available-for-sale Securities [Table Text Block]

(Dollars in thousands)	Amortized cost		Gross unrealized gains		Gross unrealized losses			Fair value
June 30, 2014:
Mortgage-backed securities:
Federal Home Loan Mortgage Corporation (FHLMC)	$	1,940		131		0			2,071
Federal National Mortgage Association (FNMA)		1,709		98		0			1,807
		3,649		229		0			3,878
Other marketable securities:
U.S. Government agency obligations		123,021		81		(110	)		122,992
Corporate preferred stock		700		0		(385	)		315
Corporate equity		58		4		0			62
		123,779		85		(495	)		123,369
	$	127,428		314		(495	)		127,247

(Dollars in thousands)	Amortized cost		Gross unrealized gains		Gross unrealized losses			Fair value
December 31, 2013:
Mortgage-backed securities:
FHLMC	$	2,749		183		0			2,932
FNMA		2,150		131		0			2,281
		4,899		314		0			5,213
Other marketable securities:
U.S. Government agency obligations		103,030		1		(637	)		102,394
Corporate preferred stock		700		0		(420	)		280
Corporate equity		58		11		0			69
Corporate preferred stock		103,788		12		(1,057	)		102,743
	$	108,687		326		(1,057	)		107,956

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

(Dollars in thousands)	Amortized Cost		Fair Value
Due less than one year	$	110,502		110,576
Due after one year through five years		16,168		16,294
Due after ten years		700		315
No stated maturity		58		62
Total	$	127,428		127,247