Note 2 - Investment Securities (Tables)

12 Months Ended

Dec. 31, 2012

Schedule of AFS and HTM Reconciliation [Table Text Block]

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

December 31, 2011 (In thousands)	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Estimated Fair Value
Available For Sale
Obligations of U.S. government-sponsored entities	$	95,770	$	408	$	15	$	96,163
Obligations of states and political subdivisions		80,801		3,903		85		84,619
Mortgage-backed securities – residential		397,675		11,384		196		408,863
Mortgage-backed securities – commercial		203		6		-		209
Corporate debt securities		7,901		-		1,537		6,364
Mutual funds and equity securities		1,601		-		-		1,601
Total securities – available for sale	$	583,951	$	15,701	$	1,833	$	597,819
Held To Maturity
Obligations of states and political subdivisions	$	875	$	99	$	-	$	974

Investments Classified by Contractual Maturity Date [Table Text Block]

	Available For Sale				Held To Maturity
December 31, 2012 (In thousands)	Amortized Cost		Estimated Fair Value		Amortized Cost		Estimated Fair Value
Due in one year or less	$	918	$	921	$	-	$	-
Due after one year through five years		57,440		58,166		-		-
Due after five years through ten years		109,844		113,430		-		-
Due after ten years		28,367		28,159		820		956
Mortgage-backed securities		360,099		370,439		-		-
Total	$	556,668	$	571,115	$	820	$	956

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

(In thousands)	2012		2011		2010
Gross realized gains	$	1,349	$	1,529	$	9,166
Gross realized losses		140		174		277
Net realized gain	$	1,209	$	1,355	$	8,889
Income tax provision related to net realized gain	$	423	$	474	$	3,111

Schedule of Unrealized Loss on Investments [Table Text Block]

	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
Mutual funds and equity securities		299		2		-		-		299		2
Corporate debt securities		-		-		4,994		856		4,994		856
Total	$	83,590	$	498	$	4,994	$	856	$	88,584	$	1,354

	Less than 12 Months				12 Months or More				Total
December 31, 2011 (In thousands)	Fair Value		Unrealized Losses		Fair Value		Unrealized Losses		Fair Value		Unrealized Losses
Obligations of U.S. government-sponsored entities	$	13,494	$	15	$	-	$	-	$	13,494	$	15
Obligations of states and political subdivisions		2,913		20		6,886		65		9,799		85
Mortgage-backed securities – residential		56,249		196		-		-		56,249		196
Corporate debt securities		-		-		4,299		1,537		4,299		1,537
Total	$	72,656	$	231	$	11,185	$	1,602	$	83,841	$	1,833