Note 2 - Investment Securities (Tables)

12 Months Ended

Dec. 31, 2013

Investments, Debt and Equity Securities [Abstract]

Schedule of AFS and HTM Reconciliation [Table Text Block]

December 31, 2013 (In thousands)	Amortized Cost		Gross UnrealizedGains		Gross UnrealizedLosses		Estimated Fair Value
Available For Sale
Obligations of U.S. government-sponsored entities	$	96,750	$	155	$	3,155	$	93,750
Obligations of states and political subdivisions		132,311		2,056		2,397		131,970
Mortgage-backed securities – residential		379,238		5,071		6,232		378,077
Mortgage-backed securities – commercial		748		-		59		689
Corporate debt securities		7,266		40		1,049		6,257
Mutual funds and equity securities		2,082		15		20		2,077
Total securities – available for sale	$	618,395	$	7,337	$	12,912	$	612,820
Held To Maturity
Obligations of states and political subdivisions	$	765	$	62	$	-	$	827

December 31, 2012 (In thousands)	Amortized Cost		Gross UnrealizedGains		Gross UnrealizedLosses		Estimated Fair Value
Available For Sale
Obligations of U.S. government-sponsored entities	$	75,945	$	216	$	66	$	76,095
Obligations of states and political subdivisions		113,986		4,943		174		118,755
Mortgage-backed securities – residential		360,099		10,596		256		370,439
Corporate debt securities		6,638		44		856		5,826
Mutual funds and equity securities		1,962		33		2		1,993
Total securities – available for sale	$	558,630	$	15,832	$	1,354	$	573,108
Held To Maturity
Obligations of states and political subdivisions	$	820	$	136	$	-	$	956

Investments Classified by Contractual Maturity Date [Table Text Block]

	Available For Sale				Held To Maturity
December 31, 2013 (In thousands)	Amortized Cost		Estimated Fair Value		Amortized Cost		Estimated Fair Value
Due in one year or less	$	3,357	$	3,367	$	-	$	-
Due after one year through five years		115,652		115,449		-		-
Due after five years through ten years		100,109		97,321		765		827
Due after ten years		17,209		15,840		-		-
Mortgage-backed securities		379,986		378,766		-		-
Total	$	616,313	$	610,743	$	765	$	827

Realized Gain (Loss) on Investments [Table Text Block]

(In thousands)	2013			2012		2011
Gross realized gains	$	14		$	1,349	$	1,529
Gross realized losses		64			140		174
Net realized (loss) gain	$	(50	)	$	1,209	$	1,355
Income tax (benefit) provision related to net realized (loss) gain	$	(18	)	$	423	$	474

Schedule of Unrealized Loss on Investments [Table Text Block]

	Less than 12 Months				12 Months or More				Total
December 31, 2013 (In thousands)	Fair Value		Unrealized Losses		Fair Value		Unrealized Losses		Fair Value		Unrealized Losses
Obligations of U.S. government-sponsored entities	$	65,094	$	2,434	$	11,830	$	721	$	76,924	$	3,155
Obligations of states and political subdivisions		48,715		1,594		15,095		803		63,810		2,397
Mortgage-backed securities – residential		219,032		5,199		16,306		1,033		235,338		6,232
Mortgage-backed securities – commercial		689		59		-		-		689		59
Corporate debt securities		80		-		4,816		1,049		4,896		1,049
Mutual funds and equity securities		716		17		22		3		738		20
Total	$	334,326	$	9,303	$	48,069	$	3,609	$	382,395	$	12,912

	Less than 12 Months				12 Months or More				Total
December 31, 2012 (In thousands)	Fair Value		Unrealized Losses		Fair Value		Unrealized Losses		Fair Value		Unrealized Losses
Obligations of U.S. government-sponsored entities	$	26,433	$	66	$	-	$	-	$	26,433	$	66
Obligations of states and political subdivisions		17,199		174		-		-		17,199		174
Mortgage-backed securities – residential		39,659		256		-		-		39,659		256
Corporate debt securities		-		-		4,994		856		4,994		856
Mutual funds and equity securities		299		2		-		-		299		2
Total	$	83,590	$	498	$	4,994	$	856	$	88,584	$	1,354