Note 7 - Investment Securities (Tables)

9 Months Ended

Sep. 30, 2013

Investments, Debt and Equity Securities [Abstract]

Schedule of AFS and HTM Reconciliation [Table Text Block]

September 30, 2013 (In thousands)	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Estimated Fair Value
Available For Sale
Obligations of U.S. government-sponsored entities	$	98,239	$	163	$	2,315	$	96,087
Obligations of states and political subdivisions		130,441		2,266		2,169		130,538
Mortgage-backed securities – residential		348,935		6,282		3,468		351,749
Corporate debt securities		6,721		42		987		5,776
Mutual funds and equity securities		1,898		22		17		1,903
Total securities – available for sale	$	586,234	$	8,775	$	8,956	$	586,053
Held To Maturity
Obligations of states and political subdivisions	$	820	$	51	$	-	$	871

December 31, 2012 (In thousands)	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		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
September 30, 2013 (In thousands)	Amortized Cost		Estimated Fair Value		Amortized Cost		Estimated Fair Value
Due in one year or less	$	2,681	$	2,694	$	-	$	-
Due after one year through five years		105,522		105,666		-		-
Due after five years through ten years		109,489		107,528		-		-
Due after ten years		17,709		16,513		820		871
Mortgage-backed securities		348,935		351,749		-		-
Total	$	584,336	$	584,150	$	820	$	871

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

	Three Months Ended September 30,				Nine Months Ended September 30,
(In thousands)	2013		2012		2013			2012
Gross realized gains	$	3	$	343	$	6		$	1,038
Gross realized losses		1		67		64			74
Net realized gain (loss)	$	2	$	276	$	(58	)	$	964

Schedule of Unrealized Loss on Investments [Table Text Block]

	Less than 12 Months				12 Months or More				Total
September 30, 2013 (In thousands)	Fair Value		Unrealized Losses		Fair Value		Unrealized Losses		Fair Value		Unrealized Losses
Obligations of U.S. government-sponsored entities	$	76,817	$	2,315	$	-	$	-	$	76,817	$	2,315
Obligations of states and political subdivisions		57,780		1,891		3,135		278		60,915		2,169
Mortgage-backed securities – residential		116,427		2,894		12,336		574		128,763		3,468
Corporate debt securities		106		2		4,876		985		4,982		987
Mutual funds and equity securities		681		17		-		-		681		17
Total	$	251,811	$	7,119	$	20,347	$	1,837	$	272,158	$	8,956

	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