Note 4 - Investment Securities (Tables)

3 Months Ended

Mar. 31, 2013

Investment [Table Text Block]

	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value
	(Dollars in thousands)
March 31, 2013
Securities available-for-sale:
U.S. Government agencies	$	517	$	61	$	-		$	578
Municipal securities		16,227		1,449		-			17,676
Residential agency mortgage-backed securities		135,271		2,954		(230	)		137,995
Commercial mortgage-backed securities		37,538		-		(710	)		36,828
All other debt securities		105,217		1,164		(386	)		105,996
Total investment securities	$	294,770	$	5,629	$	(1,326	)	$	299,073
December 31, 2012
Securities available-for-sale:
U.S. Government agencies	$	518	$	65	$	-		$	583
Municipal securities		16,258		1,727		-			17,986
Residential agency mortgage-backed securities		156,492		3,188		(567	)		159,113
Commercial mortgage-backed securities		-		-		-			-
All other debt securities		67,181		1,017		(309	)		67,889
Total investment securities	$	240,450	$	5,997	$	(876	)	$	245,571

Investments Classified by Contractual Maturity Date [Table Text Block]

	March 31, 2013
	Amortized Cost		Fair Value
	(Dollars in thousands)
U.S. Government agencies
Due after one year through five years	$	517	$	578
Municipal securities
Due under one year		690		702
Due after one year through five years		150		150
Due after ten years		15,387		16,824
Residential agency mortgage-backed securities
Due after five years through ten years		31,685		31,848
Due after ten years		103,586		106,147
Commercial mortgage-backed securities
Due after five years through ten years		37,538		36,828
All other debt securities
Due after five years through ten years		500		415
Due after ten years		104,717		105,581
Total investment securities	$	294,770	$	299,073

Schedule of Unrealized Loss on Investments [Table Text Block]

	Less Than 12 Months					12 Months or More					Total
	Fair		Unrealized			Fair		Unrealized			Fair		Unrealized
	Value		Losses			Value		Losses			Value		Losses
	(Dollars in thousands)
March 31, 2013
Securities available-for-sale:
Residential agency mortgage-backed securities	$	28,112	$	(230	)	$	-	$	-		$	28,112	$	(230	)
Commercial mortgage-backed securities		37,538		(710	)		-		-			37,538		(710	)
All other debt securities		56,880		(301	)		415		(85	)		57,295		(386	)
Total temporarily impaired securities	$	122,530	$	(1,241	)	$	415	$	(85	)	$	122,945	$	(1,326	)
December 31, 2012
Securities available-for-sale:
Residential agency mortgage-backed securities	$	40,041	$	(567	)	$	-	$	-		$	40,041	$	(567	)
All other debt securities		30,931		(224	)		415		(85	)		31,346		(309	)
Total temporarily impaired securities	$	70,972	$	(791	)	$	415	$	(85	)	$	71,387	$	(876	)