Note 2 - Securities (Tables)

3 Months Ended

Mar. 31, 2014

Investment Holdings [Abstract]

Investment [Table Text Block]

(In thousands of dollars)	Amortized Cost		Unrealized Gains		Unrealized Losses			Carrying Value
March 31, 2014
Securities available for sale
U.S. governmental agency	$	109,838	$	358	$	(344	)	$	109,852
States and political subdivisions		148,443		868		(880	)		148,431
Mortgage backed securities		67,079		1,002		(218	)		67,863
Collateralized mortgage obligations		31,808		410		(65	)		32,153
Equity and other securities		1,564		0		0			1,564
Total securities available for sale	$	358,732	$	2,638	$	(1,507	)	$	359,863
December 31, 2013
Securities available for sale
U.S. governmental agency	$	101,444	$	445	$	(285	)	$	101,604
States and political subdivisions		147,421		756		(1,513	)		146,664
Mortgage backed securities		58,533		961		(235	)		59,259
Collateralized mortgage obligations		34,225		361		(100	)		34,486
Equity and other securities		1,589		0		0			1,589
Total securities available for sale	$	343,212	$	2,523	$	(2,133	)	$	343,602

Schedule of Unrealized Loss on Investments [Table Text Block]

(In thousands of dollars)	Less than 12 Months					12 Months or More					Total
Description of Securities	Fair Value		Unrealized Loss			Fair Value		Unrealized Loss			Fair Value		Unrealized Loss
March 31, 2014
U.S. governmental agency	$	49,666	$	(316	)	$	4,607	$	(28	)	$	54,273	$	(344	)
States and political subdivisions		43,068		(541	)		17,049		(339	)		60,117		(880	)
Mortgage backed securities		22,445		(179	)		3,215		(39	)		25,660		(218	)
Collateralized mortgage obligations		6,454		(35	)		3,445		(30	)		9,899		(65	)
Total temporarily impaired	$	121,633	$	(1,071	)	$	28,316	$	(436	)	$	149,949	$	(1,507	)
December 31, 2013
U.S. governmental agencies	$	23,077	$	(237	)	$	9,836	$	(48	)	$	32,913	$	(285	)
States and political subdivisions		53,185		(1,176	)		14,085		(337	)		67,270		(1,513	)
Mortgage backed securities		16,719		(235	)		0		0			16,719		(235	)
Collateralized mortgage obligations		4,132		(35	)		8,246		(65	)		12,378		(100	)
Total temporarily impaired	$	97,113	$	(1,683	)	$	32,167	$	(450	)	$	129,280	$	(2,133	)

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

	As of March 31,
(In thousands of dollars)	2014		2013
Trading Account Securities Gains/Losses	$	0	$	0
Available for Sale Securities
Gross realized gains		1		67
Gross realized losses		0		17
Net realized gains	$	1	$	50

Investments Classified by Contractual Maturity Date [Table Text Block]

(In thousands of dollars)	Carrying Value
Due in one year or less	$	43,871
Due after one year through five years		156,797
Due after five years through ten years		105,058
Due after ten years		52,573
Total debt securities		358,299
Equity securities		1,564
Total securities	$	359,863