Note 6 - Securities (Tables)

6 Months Ended

Jun. 30, 2013

Investments, Debt and Equity Securities [Abstract]

Available-for-sale Securities [Table Text Block]

			June 30, 2013
(In Thousands)	Amortized Cost		Gross Unrealized Holding Gains		Gross Unrealized Holding Losses			Fair Value
Obligations of U.S. Government agencies	$	49,016	$	412	$	(1,458	)	$	47,970
Obligations of states and political subdivisions:
Tax-exempt		132,525		3,644		(1,686	)		134,483
Taxable		29,976		273		(560	)		29,689
Mortgage-backed securities		63,776		2,108		(259	)		65,625
Collateralized mortgage obligations, Issued by U.S. Government agencies		183,792		1,599		(2,467	)		182,924
Collateralized debt obligations		660		0		0			660
Total debt securities		459,745		8,036		(6,430	)		461,351
Marketable equity securities		5,965		2,752		0			8,717
Total	$	465,710	$	10,788	$	(6,430	)	$	470,068

			December 31, 2012
(In Thousands)	Amortized Cost		Gross Unrealized Holding Gains		Gross Unrealized Holding Losses			Fair Value
Obligations of U.S. Government agencies	$	30,695	$	572	$	(50	)	$	31,217
Obligations of states and political subdivisions:
Tax-exempt		130,168		7,030		(178	)		137,020
Taxable		24,426		462		(71	)		24,817
Mortgage-backed securities		76,368		3,828		0			80,196
Collateralized mortgage obligations, Issued by U.S. Government agencies		179,770		3,887		(147	)		183,510
Trust preferred securities issued by individual institutions		5,167		4		0			5,171
Collateralized debt obligations:
Pooled trust preferred securities - senior tranches		1,615		0		(2	)		1,613
Other collateralized debt obligations		660		0		0			660
Total debt securities		448,869		15,783		(448	)		464,204
Marketable equity securities		5,912		2,500		(39	)		8,373
Total	$	454,781	$	18,283	$	(487	)	$	472,577

Schedule of Unrealized Loss on Investments [Table Text Block]

June 30, 2013	Less Than 12 Months					12 Months or More					Total
(In Thousands)	Fair Value		Unrealized Losses			Fair Value		Unrealized Losses			Fair Value		Unrealized Losses
Obligations of U.S. Government agencies	$	27,497	$	(1,458	)	$	0	$	0		$	27,497	$	(1,458	)
Obligations of states and political subdivisions:
Tax-exempt		41,057		(1,529	)		2,455		(157	)		43,512		(1,686	)
Taxable		15,455		(560	)		0		0			15,455		(560	)
Mortgage-backed securities		9,737		(259	)		0		0			9,737		(259	)
Collateralized mortgage obligations, Issued by U.S. Government agencies		88,633		(2,466	)		352		(1	)		88,985		(2,467	)
Total temporarily impaired available-for-sale securities	$	182,379	$	(6,272	)	$	2,807	$	(158	)	$	185,186	$	(6,430	)

December 31, 2012	Less Than 12 Months					12 Months or More					Total
(In Thousands)	Fair Value		Unrealized Losses			Fair Value		Unrealized Losses			Fair Value		Unrealized Losses
Obligations of U.S. Government agencies	$	10,006	$	(50	)	$	0	$	0		$	10,006	$	(50	)
Obligations of states and political subdivisions:
Tax-exempt		7,082		(92	)		3,285		(86	)		10,367		(178	)
Taxable		4,149		(71	)		0		0			4,149		(71	)
Collateralized mortgage obligations, Issued by U.S. Government agencies		16,755		(146	)		454		(1	)		17,209		(147	)
Collateralized debt obligations, Pooled trust preferred securities - senior tranches		0		0			1,613		(2	)		1,613		(2	)
Total debt securities		37,992		(359	)		5,352		(89	)		43,344		(448	)
Marketable equity securities		95		(6	)		67		(33	)		162		(39	)
Total temporarily impaired available-for-sale securities	$	38,087	$	(365	)	$	5,419	$	(122	)	$	43,506	$	(487	)

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

(In Thousands)	3 Months Ended					6 Months Ended
	June 30, 2013		June 30, 2012			June 30, 2013			June 30, 2012
Gross realized gains from sales	$	100	$	252		$	1,402		$	317
Gross realized losses from sales		0		(49	)		(118	)		(49	)
Losses from OTTI impairment		0		0			(25	)		(67	)
Net realized gains	$	100	$	203		$	1,259		$	201

Investments Classified by Contractual Maturity Date [Table Text Block]

(In Thousands)	Amortized Cost		Fair Value
Due in one year or less	$	28,536	$	28,874
Due from one year through five years		42,777		43,532
Due from five years through ten years		76,916		75,043
Due after ten years		63,948		65,353
Subtotal		212,177		212,802
Mortgage-backed securities		63,776		65,625
Collateralized mortgage obligations, Issued by U.S. Government agencies		183,792		182,924
Total	$	459,745	$	461,351