Note 4 - Securities (Tables)

12 Months Ended

Dec. 31, 2012

Investment [Table Text Block]

(In Thousands of Dollars)	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Carrying Value
Securities Available for Sale:
December 31, 2012:
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	$	348,190	$	5,658	$	(170	)	$	353,678
December 31, 2011:
U.S. governmental agency	$	132,534	$	1,325	$	(25	)	$	133,834
States and political subdivisions		76,574		1,238		(23	)		77,789
Mortgage Backed Securities		70,059		1,080		(87	)		71,052
Collateralized Mortgage Obligations		57,006		854		(15	)		57,845
Equity and other Securities		1,606		58		0			1,664
Total	$	337,779	$	4,555	$	(150	)	$	342,184

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
December 31, 2012:
U.S. governmental agency	$	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	)
December 31, 2011:
U.S. governmental agency	$	0	$	0		$	17,974	$	(25	)	$	17,974	$	(25	)
States and political subdivisions		3,738		(2	)		2,249		(21	)		5,987		(23	)
Mortgage Backed Securities		0		0			18,091		(87	)		18,091		(87	)
Collateralized Mortgage Obligations		0		0			6,590		(15	)		6,590		(15	)
Total Temporarily Impaired	$	3,738	$	(2	)	$	44,904	$	(148	)	$	48,642	$	(150	)

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

(In Thousands of Dollars)	2012		2011			2010
Trading Account Securities Gains/(Losses)	$	4	$	(11	)	$	3
Available for Sale Securities
Other than temporary impairment losses	$	0	$	0		$	(150	)
Gross realized gains		44		28			200
Gross realized losses		0		(65	)		(46	)
Net realized gains (losses)	$	44	$	(37	)	$	4

Investments Classified by Contractual Maturity Date [Table Text Block]

(In Thousands of Dollars)	Fair Value
Due in one year or less	$	93,182
Due after one year through five years		109,398
Due after five years through ten years		75,022
Due after ten years		74,404
Total		352,006
Equity securities		1,672
Total securities	$	353,678