Note 2 - Investments (Tables)

6 Months Ended

Jun. 30, 2012

Investment [Table Text Block]

(Dollars in Thousands)	Amortized Cost		Unrealized  Gains		Unrealized Losses			Carrying  Value
June 30, 2012
Securities available for sale
U.S. governmental agency	$	117,782	$	1,347	$	0		$	119,129
States and political subdivisions		81,060		1,679		(30	)		82,709
Mortgage backed securities		65,957		1,735		(1	)		67,691
Collateralized mortgage obligations		54,572		933		(18	)		55,487
Equity and other securities		1,591		66		0			1,657
Total securities available for sale	$	320,962	$	5,760	$	(49	)	$	326,673
December 31, 2011
Securities available for sale
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 securities available for sale	$	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
June 30, 2012
US governmental agency	$	0	$	0		$	0	$	0		$	0	$	0
States and political subdivisions		3,902		(25	)		587		(5	)		4,489		(30	)
Mortgage backed securities		627		(1	)		0		0			627		(1	)
Collateralized mortgage obligations		2,416		(7	)		3,512		(11	)		5,928		(18	)
Total temporarily impaired	$	6,945	$	(33	)	$	4,099	$	(16	)	$	11,044	$	(49	)
December 31, 2011
US governmental agencies	$	17,974	$	(25	)	$	0	$	0		$	17,974	$	(25	)
States and political subdivisions		5,987		(23	)		0		0			5,987		(23	)
Mortgage backed securities		18,091		(87	)		0		0			18,091		(87	)
Collateralized mortgage obligations		5,703		(11	)		887		(4	)		6,590		(15	)
Total temporarily impaired	$	47,755	$	(146	)	$	887	$	(4	)	$	48,642	$	(150	)

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

	As of June 30,
(In Thousands of Dollars)	2012		2011
Trading Account Securities Gains/Losses	$	6	$	8
Available for Sale Securities
Gross realized gains		40		19
Gross realized losses		0		(29	)
Net realized gains (losses)	$	40	$	(10	)

Investments Classified by Contractual Maturity Date [Table Text Block]

(In Thousands of Dollars)	Carrying Value
Due in one year or less	$	29,276
Due after one year through five years		152,035
Due after five years through ten years		68,406
Due after ten years		75,299
Total debt securities		325,016
Equity securities		1,657
Total securities	$	326,673