Note 2 - Securities (Tables)

9 Months Ended

Sep. 30, 2013

Investment Holdings [Abstract]

Investment [Table Text Block]

(In thousands of dollars)	Amortized Cost		Unrealized Gains		Unrealized Losses			Carrying Value
September 30, 2013
Securities available for sale
U.S. governmental agency	$	107,919	$	641	$	(224	)	$	108,336
States and political subdivisions		147,202		811		(1,656	)		146,357
Mortgage backed securities		62,127		1,149		(173	)		63,103
Collateralized mortgage obligations		37,344		499		(58	)		37,785
Equity and other securities		1,611		229		0			1,840
Total securities available for sale	$	356,203	$	3,329	$	(2,111	)	$	357,421
December 31, 2012
Securities available for sale
U.S. governmental agency	$	105,629	$	1,271	$	(15	)	$	106,885
States and political subdivisions		116,123		1,786		(95	)		117,814
Mortgage backed securities		64,550		1,729		(2	)		66,277
Collateralized mortgage obligations		60,278		810		(58	)		61,030
Equity and other securities		1,610		62		0			1,672
Total securities available for sale	$	348,190	$	5,658	$	(170	)	$	353,678

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
September 30, 2013
U.S. governmental agency	$	27,403	$	(224	)	$	0	$	0		$	27,403	$	(224	)
States and political subdivisions		68,508		(1,603	)		4,414		(53	)		72,922		(1,656	)
Mortgage backed securities		15,096		(173	)		0		0			15,096		(173	)
Collateralized mortgage obligations		2,483		(13	)		6,930		(45	)		9,413		(58	)
Total temporarily impaired	$	113,490	$	(2,013	)	$	11,344	$	(98	)	$	124,834	$	(2,111	)
December 31, 2012
U.S. governmental agencies	$	10,135	$	(15	)	$	0	$	0		$	10,135	$	(15	)
States and political subdivisions		17,141		(93	)		582		(2	)		17,723		(95	)
Mortgage backed securities		0		0			513		(2	)		513		(2	)
Collateralized mortgage obligations		19,995		(55	)		721		(3	)		20,716		(58	)
Total temporarily impaired	$	47,271	$	(163	)	$	1,816	$	(7	)	$	49,087	$	(170	)

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

	As of September 30,
(In thousands of dollars)	2013		2012
Trading Account Securities Gains/Losses	$	2	$	1
Available for Sale Securities
Gross realized gains		79		42
Gross realized losses		27		0
Net realized gains	$	52	$	42

Investments Classified by Contractual Maturity Date [Table Text Block]

(In thousands of dollars)	Carrying Value
Due in one year or less	$	50,587
Due after one year through five years		149,361
Due after five years through ten years		104,967
Due after ten years		50,666
Total debt securities		355,581
Equity securities		1,840
Total securities	$	357,421