Note 5 - Securities (Tables)

9 Months Ended

Sep. 30, 2013

Investments, Debt and Equity Securities [Abstract]

Available-for-sale Securities [Table Text Block]

	September 30, 2013
	Amortized Costs		Gross Unrealized Gains		Gross Unrealized Losses		Fair Values
Available for Sale:
U.S. Treasury	$	2,001	$	11	$	---	$	2,012
U.S. Government agencies		169,815		253		17,925		152,143
Mortgage-backed securities		2,919		234		---		3,153
States and political subdivisions		23,742		785		123		24,404
Corporate		8,805		113		541		8,377
Other securities		2,151		---		15		2,136
Total	$	209,433	$	1,396	$	18,604	$	192,225

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

Held-to-maturity Securities [Table Text Block]

	September 30, 2013
	Amortized Costs		Gross Unrealized Gains		Gross Unrealized Losses		Fair Values
Held to Maturity:
U.S. Government agencies	$	13,977	$	315	$	1,025	$	13,267
Mortgage-backed securities		547		55		---		602
States and political subdivisions		150,228		3,158		6,579		146,807
Total	$	164,752	$	3,528	$	7,604	$	160,676

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

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

	September 30, 2013
	Less Than 12 Months				12 Months or More
	Fair Value		Unrealized Loss		Fair Value		Unrealized Loss
Temporarily Impaired Securities:
U.S. Government agencies	$	156,170	$	18,542	$	2,608	$	408
States and political subdivisions		57,677		6,593		850		109
Corporate		5,477		541		---		---
Other securities		---		---		174		15
Total	$	219,324	$	25,676	$	3,632	$	532

	December 31, 2012
	Less Than 12 Months				12 Months or More
	Fair Value		Unrealized Loss		Fair Value		Unrealized Loss
Temporarily Impaired Securities:
U.S. Government agencies	$	44,351	$	622	$	---	$	---
States and political subdivisions		9,358		216		482		3
Other securities		---		---		133		172
Total	$	53,709	$	838	$	615	$	175