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Note 3 - Securities (Tables)

12 Months Ended

Dec. 31, 2013

Investments, Debt and Equity Securities [Abstract]

Available-for-sale Securities [Table Text Block]

		December 31, 2013
Available for sale:		Amortized Cost				Gross Unrealized Gains				Gross Unrealized Losses				Fair Value
U.S. Government agencies and corporations			169,818				199				22,163				147,854
States and political subdivisions			22,830				746				120				23,456
Mortgage-backed securities			2,627				213				---				2,840
Corporate debt securities			7,804				97				506				7,395
Other securities			2,145				---				22				2,123
Total securities available for sale		$	205,224			$	1,255			$	22,811			$	183,668

		December 31, 2012
Available for sale:		Amortized Cost				Gross Unrealized Gains				Gross Unrealized Losses				Fair Value
U.S. Treasury		$	2,005			$	68			$	---			$	2,073
U.S. Government agencies and corporations			128,805				1,381				622				129,564
States and political subdivisions			35,029				1,753				3				36,779
Mortgage-backed securities			4,202				367				---				4,569
Corporate debt securities			14,207				368				---				14,575
Other securities			2,419				9				173				2,255
Total securities available for sale		$	186,667			$	3,946			$	798			$	189,815

Investments Classified by Contractual Maturity Date [Table Text Block]

		December 31, 2013
		Amortized Cost				Fair Value
Due in one year or less		$	3,744			$	3,821
Due after one year through five years			9,910				10,262
Due after five years through ten years			25,070				23,707
Due after ten years			164,355				143,755
No maturity			2,145				2,123
		$	205,224			$	183,668

Held-to-maturity Securities [Table Text Block]

		December 31, 2013
Held to maturity:		Amortized Cost				Gross Unrealized Gains				Gross Unrealized Losses				Fair Value
U.S. Government agencies and corporations		$	13,973			$	280			$	1,448			$	12,805
States and political subdivisions			149,490				2,971				6,502				145,959
Mortgage-backed securities			520				53				---				573
Total securities held to maturity		$	163,983			$	3,304			$	7,950			$	159,337

		December 31, 2012
Held to maturity:		Amortized Cost				Gross Unrealized Gains				Gross Unrealized Losses				Fair Value
U.S. Government agencies and corporations		$	7,988			$	563			$	---			$	8,551
States and political subdivisions			151,209				9,880				216				160,873
Mortgage-backed securities			691				73				---				764
Corporate debt securities			651				7				---				658
Total securities held to maturity		$	160,539			$	10,523			$	216			$	170,846

Securities Held To Maturity Classified By Contractual Maturity [Table Text Block]

		December 31, 2013
		Amortized Cost				Fair Value
Due in one year or less		$	5,065			$	5,136
Due after one year through five years			3,130				3,176
Due after five years through ten years			17,317				18,151
Due after ten years			138,471				132,874
		$	163,983			$	159,337

Schedule of Temporary Impairment Losses, Investments [Table Text Block]

		December 31, 2013
		Less Than 12 Months								12 Months or More
		Fair Value				Unrealized Loss				Fair Value				Unrealized Loss
U. S. Government agencies and corporations		$	138,324			$	20,400			$	15,796			$	3,211
State and political subdivisions			58,013				6,131				2,697				491
Corporate debt securities			5,511				506				---				---
Other securities			167				22				---				---
Total temporarily impaired securities		$	202,015			$	27,059			$	18,493			$	3,702

		December 31, 2012
		Less Than 12 Months								12 Months or More
		Fair Value				Unrealized Loss				Fair Value				Unrealized Loss
U. S. Government agencies and corporations		$	44,351			$	622			$	---			$	---
State and political subdivisions			9,358				216				482				3
Other securities			---				---				133				173
Total temporarily impaired securities		$	53,709			$	838			$	615			$	176

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