Note 2 - Investments (Tables)

6 Months Ended

Jun. 30, 2013

Investment Holdings [Text Block]

Investment [Table Text Block]

(In thousands of dollars)	Amortized Cost		Unrealized Gains		Unrealized Losses			Carrying Value
June 30, 2013
Securities available for sale U.S. governmental agency	$	97,898	$	597	$	(345	)	$	98,150
States and political subdivisions		148,622		898		(1,784	)		147,736
Mortgage backed securities		60,061		1,021		(264	)		60,818
Collateralized mortgage obligations		42,182		546		(41	)		42,687
Equity and other securities		1,389		230		0			1,619
Total securities available for sale	$	350,152	$	3,292	$	(2,434	)	$	351,010
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
June 30, 2013
U.S. governmental agency	$	36,226	$	(345	)	$	0	$	0		$	36,226	$	(345	)
States and political subdivisions		71,154		(1,726	)		3,861		(58	)		75,015		(1,784	)
Mortgage backed securities		17,242		(264	)		0		0			17,242		(264	)
Collateralized mortgage obligations		4,035		(39	)		562		(2	)		4,597		(41	)
Total temporarily impaired	$	128,657	$	(2,374	)	$	4,423	$	(60	)	$	133,080	$	(2,434	)
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 June 30,
(In thousands of dollars)	2013		2012
Trading Account Securities Gains/Losses	$	6	$	6
Available for Sale Securities
Gross realized gains		79		40
Gross realized losses		27		0
Net realized gains	$	52	$	40

Investments Classified by Contractual Maturity Date [Table Text Block]

(In thousands of dollars)	Carrying Value
Due in one year or less	$	54,876
Due after one year through five years		143,936
Due after five years through ten years		92,702
Due after ten years		57,877
Total debt securities		349,391
Equity securities		1,619
Total securities	$	351,010